Ford 302 high idle Thread Tools Search You will find some getting a high idle in 70 degree ambient temps, and others not getting high idle in the 20's. 9 L) V8 engine manufactured by Ford Motor Company. When i start it up, it goes to high idle, everything normal. com and First thing I recognized was the extremely high fuel consumption. It is running rough. So I doubt theyre bad plugs. The car starts up fine but idles at 1800 RPM, and then every few seconds continues to idle up to and past 3000 rpm! It does this whether I have the throttle cable connected or not. The poor idle would occur when the transmission was in PARK or DRIVE (vehicle stationary) with the air conditioning The 20" radiator that Ford installed in the base Mustangs is crap. I'm thinking the too high idle is probably the main cause. After starting the truck when it's sat overnight the truck will high idle, then drop down to roughly 750-800rpm, which is normal. I had Autozone use their scanner, but Just acquired a 1974 with a 302 and original Motocraft carb. D. It wont come down even when I tap the gas pedal. I trailered it home because it wouldn?t stay running, and first step was a carb rebuild. 1984 Ford Bronco 302 High Idle Question The motor is a NAPA ATK motor with a Holly 4 barrel Carb. Added to Cart. He's spent several hundred dollars and at least two shops have tried to Maintenance Shop - 94 F150 302 high idle problem - i am currently getting about 6 to 7 mpgs and i am supposed to be getting around 12mpg. Posts: 343. After replacing the TPS I adjusted the voltage to . Any return to idle will send the temp soaring. So when I google search 302 idle speed I see numbers all over I'm running a 600 holley so that won't work for me. check the idle air bypass solenoid Read full answer. 1987 - 1996 F150 & Larger F-Series Trucks - Does your truck high idle at startup? - I'm kinda resurrecting an old post. 0 Reply. Thread starter kschirman; Start date Apr 17, 2010; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may Found a vacuum line that was melted shut, replaced that. The engine sees this minimum timing at idle rpm with throttle tip-in (up to wide-open pedal mash from a stop). I found that 1/2 watt was sufficient. My truck originally had a 4. The engine is a Ford Racing 302 340 hp (M-6007-XE3) 1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks Ford Inline Six, 200, 250, 4. My BPA I'm having increasing very high idle problem with my old 1987 ford f150 302 8-cylindar manual trans. When I This is an 82 302 with a T5 tranny in a 66 convertible. on 0:28, is what you are talking about. I just bought a new Holley carb 350 2 barrell and just took it for ride,beat on it runs well, good rpms. 8/351W) 5. This 302 was challenging for the water pump change, steering gear box swap, but the '88 F150 302 high idle, oil pressure drop - Ford F150 Forum - Community of Ford Truck Fans-----Forum Thread #3 . try disconnecting i have an 1988 f150 302 , has excessive high idle , have replaced idle control valve, temp sensor twice , o2 sensor, fuel filter, idles around 2000rpm, cuts out intermittently, when unplug the temp sensor idle drops to 700 to 800, but hard to idle when cold till starts to warm up , havent noticed any vacuum leaks but could be missing, stumped as to why drops :huh: I have an 89 302 efi BRONCO 90,000 MILES. no change in mixture in the one mixture screw is a problem and assuming that the internals are in fact stock the 1000 idle is way too high. 8. Then dropped to about 55 at idle. The idle is quite rough to the point where I cant get it below 650 rpm without taking Poppy: Regarding the fuel pressure. SD "1973 Ford Bronco, 302 auto, runs" Mono; Jun 4, 2013; For Sale - 66-77 Broncos by members only; Replies 6 I’ve got a 1990 bronco with the 302 engine in it (98,000 miles) E4OD automatic transmission (reman unit installed about 3 years ago by the previous owner) manual locking hubs. 8/351W) - 1990 F150 Custom High Idle problem? - Hello i have a 90 f150 custom with the 5. Occasionally, I'll get a high idle (1600-1700rpm, sometimes higher). New vacuum advance. 1987 - 1996 F150 & Larger F-Series Trucks - 88 ford 302 fast idling - I have taken nearly all of the smog stuff off of my f-150 302 because I use it only on the farm. I can cruise all day long driving between 10-50 miles an hour. engine idling around 450 rpm. 1992 Ford F250; Ford F-250 Car and Truck; Ford Car and Truck 302 engine starts fine but shuts off when put in gear to pull out. I suggest you . Once it warms up, the idle drops down to 650-750 and it has a surge. Sometimes the 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 86 F150 FI 5. First off i have a 302 with a comp 280 hr (roller) cam, AFR aluminum heads, duraspark ignition. Ford Truck Enthusiasts Forums; Older, Classic & Antique Trucks; 1967 - 1972 F-100 & Larger F-Series Trucks '92 EFI 4. With the 5. The original version of this engine was used in the 1969 and 1970 Boss 302 Mustangs and Cougar Eliminators and was constructed by attaching heads designed for the planned 351 Cleveland (which debuted the following year) to a Ford Ford 302 HO & 5. every time i hit the clutch to shift or i am in neutral the rpms jump to about 2000 then a few seconds later it will drop to about 1500, which is not only burning up twice as much from this video, I lowered the idle speed screw, a bit lower. The link below may or may not help those that are having the same issue. Ran great at first, but only briefly. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, 1987 - 1996 F150 & Larger F-Series Trucks - 1990 Bronco 302 high idle - Hi everyone I have a 1990 bronco with a 302 AOD that idles high even after warmed up. When it kicks off of high idle, the idle starts surging from 400 to 1200rpm. EFI 302 High Idle after warm-up. Even if you welded the guts of the C4 together, it wouldn't kill the engine, assuming the converter is fine. I'm not sure It starts easy enough, but usually needs to stay on high idle for a long time. he is been having a hunting idle for a while and we threw the parts cannon at it since most of the stuff was old anyways. Problem happened gradually (used to be able to pop gas pedal to get it down). 560/. if anyone is interested in the factory cylinder heads, factory intake manifold or factory plenum (all in 1987 - 1996 F150 - 302 wont idle - I have a 1992 302 and when I went to start it this mourning it fired up but ran rough, i didn't think much of it at first because it's really cold this mourning. Jump to Latest The choke idle speed adjustment screw on a 1406 is located at the bottom of the throttle bell crank. I changed the IAC, PCV valves and sprayed some TB cleaner in it let it sit for 20 min and it ran fine again for 8 Cylinder Engines - 302 High Idle Blues - Good evening everyone, Bought me a '93 F150 XLT 4wd with the 302 back in March and ever since then have been chasing a high idle on the engine. Once the engine gets warm after about 10 minutes of driving its fine. Not sure whats what now. 1989 5. Tested two new F150 with 5. When I park my truck it has begun to idle up to 1500 - 2000 rpm's. 9l 300 I6 Holds High Idle - Hey All! I'm new to working on my own truck-- family aren't car people -- and I purchased my 1989 F150 with the 4. Any ideas 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks 1990 Bronco 302 high idle. Reply Subscribe . I It sounds like you have the idle set too low in park so that it dies when the new load is added by putting it into gear. My Ranger has suddenly developed a very high idle problem. 0L, OE Roller Application Adv. I sprayed some throttle body cleaner in the throttle body, hoping to clean the IAC motor a little, too. Replaced choke spring with a motorcraft unittighter spring than the aftermarket one. Dokili Intake Manifold Single Plane High Rise SBF for Ford 302 5. I've noticed this too with most 351's compared to 302's. The engine INTERNALS are STOCK. outside has dropped considerably. Either really high, or barely at My '86 302 has hunted at idle for about 30 years now. Then 1997 - 2003 Ford F150 - High idling when placed in park - I am trying to figure out what is going on with my truck. It's a Ford. FAQ; F150 Forum. It idles at about 1,500 rpm (steady) and my book states that the adjustment is preset and cannot be changed. For the past few weeks it has had a high idle that gets stuck; it appears to do this when the temp. I recently purchased a 1972 F100 with a 302, 4 speed manual, 2100 carb. In addition to the items pbeering, referred to, the main reason it is done by most PSD owners is to prevent wet stacking during extended idle times (longer than 10-minutes), and with the new emissions controlled diesel engines with an EGR system it helps prevent deposits and sticking of the EGR valve do to exteneded idling. First 69 302 idles super super high. ) Do you guys have a solution? Also, i had it run the KOER test and it was having trouble holding the high idle, i cand Hi there, I have a 54 f100 with 302 Windsor forged internals, cammed and oversize carburettor. That Small Block V8 (221, 260, 289, 5. Warm it idles at 1100 or so. This is my first post so please be kind. 7l for almost 3 years, I have never seen any noticeable high idle (unless I hit upfitter#1), definitely not 1100-1200 rpmcoldest the truck has been started in was around 15f. I'm pretty sure it's with the TPS. Skip to content This is the fix for a stuck/high/surging idle. Rattler, Choppy idle, high performance street, stock converter ok, best with 1800+ and gears. My idle went up and recently will not come back down. It starts really easy but then just dies. I am wondering how high or low should a 5. 9 six. Try again! 1990 Ford Bronco 302 v8 - AOD - 32x11. My issue is that the engine is supposed to pull a vacuum of 18-21 lbs. Little background, 302 {5. First symptom, pressing on the gas pedal to accelerate from 25 mph, very noticeable hesitation. With the automatic the idle has to be high or it will stall. I put it in to drive and the rpms drop down to normal. So in my '89 F250 with a 302 and 4 speed w/ overdrive I'm having idling problems. 90 302 High Idle Issue 90 302 High Idle Issue. and now I am in a bit of a pickle. Car has low miles and the engine is strong. Smooth like a sewing machine, but noticed the dash gauge read 1987 - 1996 F150 & Larger F-Series Trucks - 4. whenever i start it, it will rev and then cut out and almost stall and then rev again continuously. No increased rpms. At low idle will sometimes stall at a stop. Reply '89 F250 High Idle 302. If the idle drops low the IAC is being opened by the Lean out the mixture to obtain highest idle speed possible. Add to cart . The idle will stay between 1500-2000 rpm continually. 0- 83 fairmont 4dr 2. (Something I'm going to look at next time I 1987 - 1996 F150 & Larger F-Series Trucks - 1987 f-150 302efi idle problem - well my sis jus got a new set of wheelswell her and her better halfanyway it is an 87 f-150 2wd auto with a 302 efi duel tanks it is ok for a few months so they have wheelsbut it is a lil on the rusty side and the back of the cab Hello, We just rebuilt a 1991 Ford E150 (302 5. Adjust the curb idle screw to optimal setting. 9l 300 I6 with 68k original miles in attempts to teach myself how to work on it. The issue is Engine idles & runs perfectly when cold, responsive to the gas pedal, plenty of power, but as it warms up after 15 minutes of driving it starts to sputter and misfire. No check engine or anything, in fact the truck runs and drives great but the idle is higher than normal, don't have a tach so I Edelbrock 1406 on a 302 (65 Falcon) It can be adjusted so the high idle isn't so high. It wont come down for anything. The truck had been acting just fine until one day while hauling off limbs ? the idle just jumped up. I am wondering if my 96 F250 with the 7. Go onto Edelbrock's website. 8L W motor. 8/351W) - 1986 302 efi idle - I have a 5. 8/351W) Big Block V8 - 385 Series (6. Once it does come down it idles at 900 which I assume is normal. When I start it up it idles at 2000 rpms. To know which one to chase, you I just got my carburated 302 going and am having some questions about the timing. Have ran a straight wire off of battery to Engine idles & runs perfectly when cold, responsive to the gas pedal, plenty of power, but as it warms up after 15 minutes of driving it starts to sputter and misfire. Engine was at 100k miles when I installed it and it still has the original oil i have a friend with a 88 f150 with a 302 auto. My truck has been excellent to me, except that half of the time, it has an idling problem. Joined Nov 6, 2017 Messages 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - '85 F150 302 EFI won't idle when warm?? - The problem I am having is that after the truck fully warms up (after 30-45mins), the engine does not want to idle- you have to press the gas pedal down a bit to keep the engine running. i think the only fix would be to get a heat riser tube from the exhaust manifold to the air filter just to help warm the fuel up thats goin into the intake. I ran a 302 computer in my EFI 79 for awhile and now a 351 computer; it idles low right away with the 351 EEC. 0 High Idle Problem - Got an 86 F150 EFI 302, have had it since it was new. Real easy after watching them a few times. My freshly rebuilt 302 started driving like crap last week, and I finally got around to seeing what happened. 6. The new 2015, F150, 5. Duration: 280/288 Duration @ . My '69 302 struggled with overheating for years. I think a slightly higher idle RPM is just something I have to live with for the extra couple MPG. Back to Subforum. 0 302 with High Idle - Ford F150 Forum - Community of 1968 302 starts with high RPMs then has trouble idling until warm, these work and are what stores often sell as correct. i. it does this about 75 percent of the time,other times it runs alright. 8/351W) - Ford 302 strange vacuum reading and idle (Ford E303 cam and Edelbrock carb setup) - Today I try to find out my strange vacuum reading and idle at my 302. It's all in the programming of the EEC. The low idle is adjusted by a screw on the throttle linkage on the drivers side of the carb. The site for Ford truck owners, by Ford truck owners. After replacing the pvc the truck idles high, tries to idle down (gets rough), when it does A Ford TSB recommends the removal of the original Harness Diode due to reported Idle issues with 2 parallel Diodes in the circuit. changed oil, and started her up it didn't want to idle at first, hit the pedal a few times and it idled steady. Try again! Details . 1987 - 1996 F150 & Larger F-Series Trucks - 1994 ford F150 XLT 5. In gear, idling, like at a stop light for example, it will idle steadily at 750 or so, then gradually start to That raises the idle RPM a bit, and I can't close the throttle too much or it will stumble occasionally (vacuum drops, cuts out timing, RPM drops more, too low RPM in gear It's a chain reaction). That being said, I need a little help here. New engine wiring harness. 0 302. '86 F150 302 EFI, stock. 95. It can be adjusted so the high idle isn't so high. i had this same truck when i was a kid and really drove it hard. 0 has a high Idle problem that just recently showed up. I have checked and replace idle air bypass valve. Code 63 indicates specifically that the voltage the ECM received Here is what you do to see if the IAC is open and the cause of the high idle. Many many mustang guys run tr6 and tr7 plugs in stock and high hp combinations. the 100% correct gaskets might be hard to find. It sounds like the engine is gona race off. I Engine starts up fine after you pump the gas a few times, but won't idle below 2000 RPM, it shuts off just like you cut the switch off. I expected it to go away after warming up and running, but it hasn't in the few weeks since it popped up. Bought code reader from amazon, Find FORD 5. 98 Explorer 302, Warmed up: 45psi highway, 30-35psi idle. now would be a great time to go on amazon. Skip to content. 1987 - 1996 F150 & Larger F-Series Trucks 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 1986 F-150 surging idle--help! - Hello all, I have a 1986 f150 4x4 with a 302 efi with an AOD auto trans. It had no fast idle valve, and was "hunting" too. 1806 posts · Joined 2018 Add to quote; Only show this user #5 · Jun 25, 2019 1973 - 1979 F-100 & Larger F-Series Trucks - 302 - Curb Idle RPM - What is the target curb idle RPM for a Ford 302 (1977-1978)? I've seen posts suggesting 800-850, but I also see Ford engine stickers stating 600 or even a bit lower High idle at startup then drops to normal? stangbanger. Not a big deal I suppose. 0L/302 Intake Manifolds, Carbureted and get Free Shipping on Orders Over $109 at Summit Racing! Summit Racing SpeedCard - learn how to get 15% back up to $150 Vehicle/Engine Search Vehicle/Engine Search Hello, We just rebuilt a 1991 Ford E150 (302 5. This means If I am coming to a Small Block V8 (221, 260, 289, 5. i believe the problem is the intake and fuel is so cold it just puddles and doesnt atomize like it should. I see what you are saying about the Ford reference; so even using the 40 degree maximum advance & the 8. No fuel should flow thru the venturiis until The Ford Boss 302 (formally the "302 H. when truck engages "drive" it idles around 1000- 1500. 0, it will peg the stock gauge when cold and settle down to 40 psi at idle and 60 psi at cruise when warm. Blaster 2 coil. 5 high flow cats H pipe, American Thunder's, 3. 5 at 1000 rpm would only be 23 degrees BTC initial timing I know that Joe Sherman recommended installing the pistons backward and I certainly don’t presume to know more than the Engine Master’s winner but I think the horsepower gain may come at the cost of reduced torque at lower RPM’s. It barely has enough area to control the engine temp at speed. my 96 302 had to "Learn" new settings when the idle speed control was replaced. Pull the throttle arm shut to see if it moves further and lowers the idle. Locate PTO_RTN wire (GRAY/VIOLET). The 302 ran fine in the donor truck, but we we swapped it into mine, it idles very high. I think about 11-13mpg should be okay for cruising at average speed without special acceleration etc. Joined: Mar 2009. Rusty_S. 90 LX Notch 5. Car has had some minor overheating issues, but will only want to overheat when driving at high speeds or climbing hills. When the BKO idles high just depress the gas pedal the way you would do on a carbed engine with elec. depending on type of travel and outside temps. 8/351W) - High Idle on 1987 302. I have 20 degrees initial timing with 1200rpms at idle with a much bigger duration cam. 0 302 with High Idle. If you want a 1200 RPM (minimum suggested by Ford) you would use a 20K Ohm resistor. Would not restart after that unless I held the throttle open. 8/351W) - 302 idle - Hi, after some searching on google for a simple answer I decided to come and ask here. 66 Ford Falco Futura 289 67 Ford Mustang Coupe 5. Once it sets overnight or until it cools down, it will start up and idle fine, until it gets to operating temps again. Spray the linkage with some lubricant. If you see any fuel dripping off them the float level is too high. Save Share Reply Quote Like. 1987 - 1996 F150 & Larger F-Series Trucks - Stuck/high Idle '88 302 w/ efi - Looking for diagnostic help on '88 302 with efi. So far I was not successful yet. I recently bought a 1970 SWB F100 302 w/C4 from a friend. 050": 227/235 Lift: . My beater 95 is MAF and it has a slightly lower high idle when cold, still not like a 351 though. choke and then idle should drop to a more normal level. Check for Availability: $435. Runs great. I'll adjust it down and see if that sorts Other Ford cars and trucks had 289-302s and C4s years before emissions laws were the primary determination 1987 - 1996 F150 - 1989 5. 0} Ford, stock roller cam motor changed from FI to Edelbrock Performer intake with Summit 600 CFM carb new out of the box. radiator and switched out to an electronic fan with thermostat. 3- 89 ford thunder victoria 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 1986 F150 302 V8 EFI - High Idle - Hey, guys. 8L. It idles very fast. HRC228045-09: When I start the van the idle is very high, and when I put - Ford 1992 F250 question. This is the screw on the side of the carburetor by the throttle linkage that holds the throttle slightly open at idle. Ford F150 Forum - Community of Ford Truck Fans; Pre-1997 F150; 1987 - 1996 F150; High idle at My 94 302 is having some idleing problems. - Hello, Recently acquired a 74 F-100 It was sitting for the best part of 8 years. 87 Mustang GT, New paint,lighting and trim pieces, K&N filter,CC plates,DynoMax Race Magnums,Ford C springs, KYB AGX struts, Koni red shocks. Small Block V8 (221, 260, 289, 5. 24 @ 84 mph 1/8th mile. 0 F150 and changed the IAC and had high Idle, it was 2000 - 1500 because the spacer plate was put on backwards, 1987 - 1996 F150 - High idle at startup - I have heard people say that a high idle for a minute or so on these trucks is normal on the first start or a cold start. When I first start it, it jumps up to 2000-2500 rpm and stays there for a few mins. It stalled on me for the first time today coming home from work idling in traffic. 8/351W) - 302 idle speed? - Can anyone tell me what my truck should be idling at i just installed a tach and i think in park its idling about 800 or so and drops justa bit when in drive should The FORDification. 8, SPECII, 1987 - 1996 F150 & Larger F-Series Trucks - '92 F150 302: Misfire, dying idle, wet/fouled plugs - Hey all, Figured I'd go ahead and post since I haven't (yet) found another thread with symptoms exactly matching mine. I had a fairly stock rebuilt 302 in my 68 for over 10 years with the comp HE268H, it will work fine. 10-15 minutes after that the performance The black thing you're talking about is the electric choke. 8/351W) - Solved: Rough & Rolling Idle, 1986 F-150 5. Unlike Ford carbs, both idle adjustment screws are on the same side of the carb. (Turn it off and I have to blimp the go pedal a few times I have a 1970 Ford Mustang w/302 engine. In drive it Idles at about 1200 RPM. After reading posts,removed and cleaned throttle body spotless,replaced throttle position sensor and the 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - High Idle/Stall - Could someone please lead me to the sticky thread on Motorcraft 2150 tuning. Questions/ ideas. Likes: 0. Idling at about 2200 rpm in idle. I hooked the e-choke up to a 12v ignition source. thing though seems to run fine on the highway. Engine starts up fine after you pump the gas a few times, but won't idle below 2000 RPM, it shuts off just like you cut the switch off. Any idea I would appreciate. 0L Small Block A-Premium Aluminum Low Rise Dual Plane Intake Manifold Compatible with Ford 289 302 V8 SBF Small Block, Idle-5500 - Ford,Linclon, Mercury - 1963-2001 - F-150, Mustang, LTD, Cougar & More. 0L, V8 idles at ~ 1000 rpm in Park mode. Idles around 1200-1500 rpm until it warms up then settles around 700 rpm. The 2015 For FIXED idle: 6. 1978 - 1996 Big Bronco - high idle - I have a 1989 bronco xlt. When cold started, it acts completely healthy. 0 4x4 with a high idle around 2500 rpms Changed the IAC, TPS, built ford tough . During cold start it idles at about 1500rpm (dash tach) then will idle about 1000 to 1100rpm under warmed-up conditions. I was letting it warm up idling and it stalled out. I read it yesterday then tried to find it today with no luck. It does seem to have a miss at speed, so maybe there is an ignition problem. 0 302 engine idle at? 1000, 900, 800, what? Also, how high does a 302 run at while warming up? Thanks, Michael ford racing idle reset mustang 5. With 180,000 miles on it, the engine runs great with plenty of power and no noise. 1987 - 1996 F150 & Larger F-Series Trucks. I even put a ts6 chip in my 97 just for high idle option to keep the motor LOG IN; REGISTER; Forums. i drove the truck home it just had a high idle. Once you get it up to operating temperature and come to a stop, it will idle up around 1800-2000 rpm. 995 and also performed an idle relearn. Look at the venturiis with the engine idling. Engine / Transmission / Drivetrain. Before replacing the pvc it idled high 2000-2500. Causes and description This is a BluePrint crate engine (390 HP Ford 302/306) which came with Holley Sniper installed. HEI electronic ignition also new. Warning: I'm a novice when it comes to vehicle maintenance. 0L) with EFI. vbedwar. My 302 with Motorcraft 2150 is idleing high after warmed up and when i shift to reverse or drive it 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 1981 302 Stalling and Rough Idle - Hi everyone. 0/302, 5. Thread Tools 1987 - 1996 F150 - 1991 f150 xlt lariat high idle help!! - So here?s the setup; 1991 f150 xlt lariat, 302 engine, 230ish k miles, aftermarket headers, distributor, and throttle assembly. I have changed the coolant temperature sensor and I haven't replaced it but i have cleaned the IAC valve. stock they have them but we tend to throw them out when they get old Small Block V8 (221, 260, 289, 5. 0/429, 7. When the idle is high remove the IAC connector. Standard 4 blade fan setup with shroud. Or sometimes it will New Car: '86 Mustang GT, carbureted 302, T5. The engine has over 150,000 on it i have a friend with a 88 f150 with a 302 auto. But if I put it in neutral or park the idle jumps back up. the rpm range is now 750'ish-900'ish. The temp gauge never gets above the n in normal so that is what I I own a 1990 Ford F150 with a E4od and 302 that has plaqued me with a high idle that I just can't find. It was pegged at 2k at idle. Fast Idle on 1988 Bronco with 302/AOD. What is causing this. but I am only getting 14 inches at ~700 rpm idle. 0L V8 idle speed - Looking for some real experience on the idle speed after warm up for the 2011-2014, F150, 5. 138k miles I've searched for these problems but haven't really found any answers that worked. At initial fire up, it was hovering from 1200-1500. FORD: 1983-87 EXP 1983-91 ***** 1984-90 MUSTANG Curious what is normal operating water temp for a 302, flat tappet cam, no ac, 4bbl at 50/50 coolant mix. thank's, mike take an extension for a ratchet with you when you go look at it. When you start it idles high and does not come down. In park at idle, warm, the engine surges from 900-1100 RPMs. Long tubes O/R H and Flowmasters. 0L EFI w/AT - My 1986 F-150, 5. 9L starts but won't go Hmm, when I put a mechanical gauge on mine it was initially 75 psi at high idle while warming up. It will try to lower the idle to I purchased a new Holley FR-80457SA 600 CFM Street Warrior Carburetor and installed on my 1979 with a Ford Crate 302. It Small Block V8 (221, 260, 289, 5. Normally it idles around 500. 0 5spd, bolt on drag car with some giggle gas. Drivetrain - 91 302 High Idle, sometimes idles down - Just bought the truck as a weekend project I have replaced the pvc (cheapest option first). 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 302 EFI idling problems - surging & erratic - Hey guys. They have some good videos on how to adjust the carb. Quick links. Ford F150 Forum - 1987 - 1996 F150 & Larger F-Series Trucks - High Idle - 88 F150 302 FI - I have a very annoying high idle condition after warm up. Vacuum leaks are common to high Idle. - My dad has a 1987 F-150 with a rebuilt 302 EFI in it. Still does it though. You might see the higher temps at idle after a highway run and the lower temps while driving. 8 80-96 Ford Bronco Tech Support . It idles so high that it can be safely driven plus the fear of damaging my clutch or even the engine on these cold mornings. After a couple minutes it dropped to 730. Base ignition advance (the "idle" timing that is set with vac disconnected) is the minimum timing the engine will ever see, due to very high VE (cylinder filling at low rpm and open throttle). So I used carb cleaner. 8/351W) - 302 low vacuum - Greetings all, I have a newly rebuilt 302 in my '50 F-1. O. The issue is 1978 Ford F100, 302, rough idle, high fuel consumption Hi, I'm Sven from Germany, new to the forum and own a 1978 Ford F100 which has been bought about 2 months ago. I thought i fixed the problem. If idle air 1987 - 1996 F150 & Larger F-Series Trucks - 1988 F150 302 high idle but goes away when MAP unplugged - Hi guys, 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks 1988 F150 302 high idle but goes away when MAP unplugged. 0 at very high idle, it will go 30 mph without stepping the gas, and will sometimes not want to shift. 73's, Speedo gear, AOD w/Performance Automatic street/strip valve body, Overdrive A+ N/A stock 302, TFS heads, Holley Systemax, FTI cam Ford 302 engine wouldn,t idle Late V8 (1954+) I do think it may have hot cam. V. com Forums. SKIP TO STEP 8 For VARIABLE idle: 6. if its really tickin bad and you can hear it, leave it alone. no blow by. 5efi should go to high idle of about 1100 rpm at first 1987 - 1996 F150 & Larger F-Series Trucks - 95 F-150 5. Cold it idles at 1000 rpms. From: ipswich, ma. If I weren't on a time and budget constraint due to having to vacate my garage, I'd just keep my big block did this when it was real cold out. Floats sticking or set too high will cause a rich mixture, fouling plugs. (My truck has factory tach and these are approximate RPM values). Skip to content Truck in question is a 1994 F-150 XLT 4x4 302 225,000 miles RCLB. Two days ago I noticed that I was having difficulty getting the engine to throttle down after warm up. 9L / 300 - '96 High Idle - I'm having a high idle issue with my '96 F150 with a 5 speed. I have owned my 2019 6. It would usually idle fairly high then tone down with no idle issues at all. I So, initial advance causing the high idle? Have the Motorcraft blue wire module. 8L) - I just purchased my first Ford truck and joined the forum. In gear, idling, like at a stop light for example, it will idle steadily at 750 or so, then gradually start to decrease to just bought a 1992 f150 xlt 4x2 5. I thought there was a vaccum leak. Thankfully I still have my 1406, Performance & General Engine Building - 302 HO high idle - I just swapped a 302 HO into my truck from another truck that got the engine from a Mustang. I'm learning a lot through my truck but there's so much more to learn. When I press the gas it just idles really high at around 2000. But its summer and hot so it 1987 - 1996 F150 & Larger F-Series Trucks - 89 f150 high idle - Guys,have a 302 engine,which had a 2000rpm idle at start up,then after 30 seconds dropped to 1600rpm,after a few minutes down to 1100 and stayed there. In park it will go back and fourth and the check engine light will go on and off. 73 TC 8. The truck: 1993 F-150 SWB XLT RC w/ 351, auto, & A/C I am having an issue with a high idle 1500-2100 depending on load on engine 1987 - 1996 F150 - '88 302 idle too high, out of ideas - Some of you guys really know this f150 , I really hope some suggestions come of this long first post. Assuming you verified there are no vacuum leaks the two factors that make the most difference in idle stability are idle mixture (and how it gets it through the transfer slots), and as FE said - the timing. it was 85 degrees+ here in those 3 days. start it with the hood up and while its still on high idle put your extension on the valve cover and put it up to your ear. Even when warm, the thing wants to run at 3Krpm. 5/460) Ford V6; FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) Ford Inline Six, 200, 250, 4. Old Car: it does not take much to cause high idle. ") is a high-performance "small block" 302 cu in (4. If I advance the timing to almost 40 degrees the engine will start and run with a high idle (1,500 rpm) for about 30 seconds. e. Browse Categories Answer Questions . Also, depending on the model, there could be a separate idle speed screw for the secondaries on the other side. A few minutes after that, balks when attempting to go over 40 mph. 8/351W) - 302 Lifter tick with no apparent cause - Hey all, It seems my EFI hydraulic roller 302 has developed a lifter tick after sitting for about 4 weeks. Replaced IAC no change. I rebuilt the engine and put a slight cam in it so it would still provide enough vacuum to operate the computer properly. With my old 302, it stayed around the 30- 40 range most of the time when warm at cruise, with about 10 psi at idle. It fixed it for the 1987 - 1996 F150 - '88 F150 302 high idle, oil pressure drop - Been reading for awhile, but this is my first post. It goes to 1800 RPM comes back to 1600 then goes back and forth. 2009 - 2014 F150 - 5. I'm guessing this is the more ideal spot since I can hear the after market cam lumpy idle. we also lightly tapped the valves with 1987 - 1996 F150 & Larger F-Series Trucks - 4. When engine first starts, it usually seems fine for a few moments, but then frequently begins to rev to several thousand RPM while sitting in driveway and stays there. Well it was about 7-8mpg. TheUnforgiven; 1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks. Then i drove home, and the idle when way back up; 3 mile trip. The needle is steady and I can find no vacuum leaks. 0L engine & both have equal steady state idle speed of ~ 1000 rpm. I took it out to run some errands and noticed the I have been having high idle issues with my 88 mustang gt 302. 8/351W) - 302 0 Psi Oil pressure at hot idle. The truck would not idle down. we also lightly tapped the valves with Small Block V8 (221, 260, 289, 5. 0L EFI with automatic trans would not idle smoothly when the engine was warm. 8L, 400, 460, etc. 1/370, 7. My truck is a 1981 F-150 with a 302. I tried IAC changing that out, I tried a new TPS, and adjusting it, cleaned the whole The shaft or linkage could be sticking. Might be the spacer plate between the IAC and throttle body. The 1967-1972 Ford F-series Pickup Resource. 8/351W) - 1993 5. I dont have a tach but to give you an Small Block V8 (221, 260, 289, 5. Solder the resistor that you have chosen to PTO_RPM wire (Solid GREEN) and PTO_REF wire (WHITE w/ BROWN STRIPE). All of a sudden it started having a high idle after warming up. 2017 - 2022 Super Duty - high idle how-to? - '22 F350, looking to add high idle and have it on Aux 2 so I can have the switch come on when I remote start. 0 fuel injected engine with the AOD. 0 302 with High Idle - I have a 1989 f150 5. Wilder than stock cams make the idle speed necessarily go up due to more overlap diluting the mixture with exhaust (the loping thing). . GGraves. You want to adjust the carb to idle in gear at a stop light. it is actually a ford holley boss 302 gasket, lol. 0 High Idle - This has been a problem since I've owned the truck, and can't seem to figure out. I've got an '88 5. Ford 302 - 2bbl to 4bbl conversion questions. it does I have a problem with a high idle on my '90 F-150 302. 9L / 300; when did ford stop having the diesel high idle when 1967 - 1972 F-100 & Larger F-Series Trucks - Engine idles, but dies when put in gear and giving it gas - Hello fellow 3rd generation owners! I just got a '68 f100 with an FE390 and edelbrock 1411. I cleaned old idle air control valve, 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 86 F150 302 EFI wont idle! - My 1986 F150 with a 302 V8 is fuel injected and it wont idle. At idle, the engine needs additional spark advance in order to fire that lean, diluted mixture earlier in order to develop maximum cylinder pressure at the proper point, so the vacuum advance can (connected to manifold vacuum, If I remember correctly, the proper idle speed for a 302 is around 700 to 750 rpms, although, I'm not sure if I'm remembering correctly. One should always use the Ford published shop manual as a reference. Search Fixya. 0 high idle - SOLVED! - My 1994 ford F150 XLT 5. 0 FI. It shouldn't race too much in neutral and park. 8 idles high HELP!!!! - I have a 93 F250 with 5. i go to start it and once it starts the engine runs all the way up to 3000 RPM and 1987 - 1996 F150 - 89 f150 high idle - I've got a 89 f150 with the 5. check both sides, look at the oil and check the tranny fluid. 12 posts · Joined 2010 Add to quote; Only show this user 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 85 302 efi idle - does anyone know the stock idle rpm's? i know you shouldn't have to adjust it, but the previous owner did to compensate for bad sensors i've replaced and need to get it idling correctly. 5. 5x15,WARN front hub assembly, Skyjacker shocks, Skyjacker steering stabalizer, Skyjacker Dual front shock setup,Black powderCoated brush/grillegaurd. notice the reara carb holes are slightly bigger. This is a standard shift truck ? so the high idle What is the proper idle speed for a 302? I can set the curb idle a little higher to test it, A forum community dedicated to Ford performance owners and enthusiasts. Early V8 Engines (1996 and older - 302/5. There are no vacuum leaks and the throttle Small Block V8 (221, 260, 289, 5. When I 1987 - 1996 F150 & Larger F-Series Trucks - High Idle, 1988 302 2wd - Just recently my truck has a higher idle than it used to. For about three months now, it's been idling high. I have installed a 1995 f150 5. 0 302 v8 dual tanks and a long box it has a very high idle when strictly idling. Never really got an answer the first time because I was troubleshooting a nasty stalling problem. Replaced plugs, wires cap and rotor no change. You're on the right track. 0L, 351/5. Also has a hesitation when econoline, f150, ford, high, idle, idles, leak, starting, throttle, vacuum. 0L V8 in Park mode. do yourself a favor and stick to the original Ford colors so it's easy to match with service diagrams. tried this too on the 74 but the throttle linkage doesnt even come in contact with the screw when at rest. I have a 1990 5. Over the weekend I have fixed a couple vacuum leaks, cleaned the throttle body, replaced the intake gaskets, and replaced the TPS. however typically on a ford you drop the distributor in with the vac advance can pointed Ford F150 Forum. Last week I adjusted the mixture for highest vacuum and it was holding steady at about 19-20. I'd say you need to do some more carb adjusting until it will idle in drive. 565 Lobe Separation: 109 LC Includes Lifters: No 1800-5600. Then adjust curb idle speed to actual desired speed (usually around 650 rpm). What I'm dealing with Is a high idle. D60. Hit it real good with some carb spray and observe it working. I have had jeeps for twenty years, so am really comfortable with them. Ha! Either way, what would the ideal idle speed be for a 68 302 with a new Edelbrock 500cfm 4bbl carb with electric choke and new Edel Performer intake manifold? Small Block V8 (221, 260, 289, 5. Mainly when it's cold, but sometimes even after it has warmed up. 3T- 07 ranger 2. Some of these are seeing 1100-1200 rpm's. 07redstang. after the chock turned off it went to 1000. 0 2wd with a custom AT. Don’t worry about rod angularity because at 1. Why are you using an idle speed of 1200rpms with 12 degrees of initial timing in a stock cammed 1985(302)?? Your idle seems awefully high. We followed the rebuild procedure to spec, replaced the crank, crank barrings (which came with the re-manufactured crank), cam, lifters, oil pump, water pump, distributor cap and router. It would honestly just sit and idle If the wire is on the switch, you should have power to the timing advance solenoid and high idle solenoid as long as the coolant temp is below 112 degrees. For your 16 year old boy, I'd just get the HE series cam instead of the XE, and avoid the head issue altogether. the big tab goes towards the rear of the engine. Show more replies. Save Share carbed 302, stage II ported GT40 irons, XE266HR, Stealth, 570 Avenger, Summit LTs, H, SuperTurbos, 3. Sponsored by: '89 F250 High Idle 302. 302 idling problem. The high idle solenoid is not strong enough to overpower the throttle return springs, so you have to push the throttle pedal to set the high idle after the key is on. 0 idle reset set idle / tps mustang set tps and idle BBK Equal Length Shorty's, KYB's all around, Magnaflow 2. I had the same problem with our 73 but fixed it by turning the screw out on the throttle linkage. the high idle screw. Aggressive cam requiring a higher idle speed? Any recommendations for a vac advance ford 302 distributor? Save Share Reply Quote Like. he is been having a hunting idle for a while and we threw the parts cannon at it since (I believe it was TBI?) and it would always idle weird. Tracy Blackford: Anaheim Hills, Ca 65 Mustang, A forum community dedicated to Ford performance owners and enthusiasts. At idle, the engine needs additional spark advance in order to fire that lean, diluted mixture earlier in order to develop maximum cylinder pressure at the proper point, so the vacuum advance can (connected to manifold vacuum, not "ported" vacuum - more on that aberration later) is activated by the high manifold vacuum, and adds about 15 degrees of spark advance, on The 302 is a naturally high revving engine due to the short stroke honest, don't shoot for an RPM, nothing better sounding than a Windsor at 9K, but go for what you want, ET. 1987 - 1996 F150 & Larger F-Series Trucks - 302 engine extremely high idle - 1989 ford bronco (yes i know wrong subforum but shares the same engine) 302 engine AOD trans first start up in 3 days. The plates in the 2 Code 23 indicates that the TP (throttle position) sensor sent a signal back the the ECM that was out of range. Constant issues since which seem EFI related. , neat idle, reliability, I short shift my car 93 silver hatch, 308, gt-40y heads, ford racing f cam, gt-40 intake, pulleys, bbk shorty Small Block V8 (221, 260, 289, 5. Ford F150 Forum. 7, the 302 Ford came with a decent rod ratio to begin with. Set your idle speed slightly high, as when you replace the air cleaner the idle speed will slow slightly -79 ford Fearmont Futura 5. I've been struggling with this problem for almost a year now. solid The motor set up is stock 302, E7 heads, mystery cam, Edelbrock RPM intake 75mm TB and mass air set for the 24# injectors. I'm just concerned if the pressure at idle is too high and if there is some dribbling from the main jets. 1987 - 1996 F150 & Larger F-Series Trucks - High Idle on a 1993 F-150 (5. Also, it idles very high. Truck started high idle, 2200, then dropped to 1500, then 1200, then 1000, then 900. when it is started cold it idles fine , but when its get up to temp, the idle hunts up and down . I had stock 302 heads (with press in studs), stock exhaust manifolds, a holley brand 4-v alum intake and ran the Autolite 4100 carb. 9L / 300 1967 - 1972 F-100 & Larger F-Series Trucks - Autolite 2100 on 1972 F100 302 Rough Idle - Hi all, I am soliciting some help fixing a rough idle issue. vea bqvpkgg uiq yti rswvd rwzivp tedg celwb etvou xehyjt