94 f150 runs rough after warm up. We went thru issues with the coolant temp sensor awhile back and everything was fine after replacing it. 4L) - 4. 9 EFI and 5-speed. 4L 3v) I bought back in July of 2016. Now we have an inconsistent situation where it will be hard to start, and run really rough with no Mar 26, 2017 · 1987 - 1996 F150 & Larger F-Series Trucks - 4. Top. Occasionally it will take a few attempts to get it to start. 0 fi runs rough after warm up - 86 F150 fi with 4spd manual 4x4 I bought this truck 2 months ago as a utility truck. 9guy wrote: ↑ Mon Sep 03, 2018 6:28 am I have a 94 F-150 with the 300 inline 6 (4. 0 4x4 running rough. Apr 4, 2018 · 2004 - 2008 Ford F150 - Runs rough after warmed up - I have a 2006 F150 with 5. 4l 4x4 that runs extremely rough on cold startup. Your 94 4. I change the distributor, ignition coil and ECM for ignition Aug 18, 2023 · Most likely, the causes of rough engine idle crops from the basic functional components like direct fuel injectors, PCV valve, EGR valve, Oxygen sensors, vacuum leaks, air filter, and spark plugs or wires. 0 302 with the E4OD trans runs rough after warm up i have changed plugs plug wires roter distributor cap and egr still no fix it sounds like it may be a miss after warm up not sure. There are several reasons why your 5. 0L Stuttering/Stalling problem solved! - First off, a little background. The truck has 245000 miles on it with no real problems. May 17, 2017 · 1997 - 2003 Ford F150 - rough idle, after warm - Q. If the truck sets overnight it will tend to have a low/rough idle when it drops from high idle, and almost tries to stall. So, replaced the center tank fuel pump. I started with a tune up and while replacing the plugs and wireset I discovered the firing order was off cylinders 5 and 6 were crossed. Apr 30, 2001 · 1987 - 1996 F150 & Larger F-Series Trucks - :'( '94 F150 5. Changed trans fluid & filter and replaced MAP sensor. Mar 31, 2012 · Truck runs perfect, starts great when cold, but have to press accelerator to floor to start when warm, even when the air temp is above 60 degrees have to press accelerator to floor to start. 9L engine that after warming up the engine runs really rough. The codes I am getting are 539, voltage at PCM pin 10, Jan 3, 2019 · 1987 - 1996 F150 - Low rough idle 5. I couldnt blow through it. That night when I left, I started the truck, let it warm up for a half hour( I live in the mountains of MT) and as I drove home, the engine light started to flash and I had no engine power. Will a malfunctioning thermostat cause it to run rough, irratic haigh idle and eventually die? Jan 8, 2012 · 1987 - 1996 F150 - Runs rough after warmed up - My son's 1990 F150 (8 cyl, 5. It can be restarted and runs a little rough between 1k and 2K Dec 23, 2013 · 6 Cylinder Engines - 1990 4. 4L - Last summer while sitting in traffic, waiting on the on ramp to the freeway, my truck started to idle really rough. 9 300, m50d, bw1356 and is obviously 4-wheel drive. I get two codes 0171 and 0174 which engine runs too lean in bank 1 and 2. Dec 7, 2009 · Recently came into possession of a 94 F150 4x4 302/Auto. Let it cool off and it runs great until it warms up again. Shut off for a few minutes and process starts over. 9L Manual F150 Hesitates after warmup. 8. Sometimes with a trailer, sometimes not, hot weather or cold. Over the last two years I have installed a new ICM, EGR, Cap & rotor & plugs (all last week). Vehicle started smeeling like raw gas while driving and excessive exhaust - not black - was coming from exhaust. 2hr job and 80 dollars. Just recently my 2006 F-150 Lariat is Bucking/Misfiring and throwing multiple codes such as cam position indicator/misfire and a few others. Back in may, my 2010 F150 5. I have been reading post for days and just cant figure out my problem. I have a rough idle but only after the truck has warmed up to operating temp. 6L rough idle when warm - I've done some searches but haven't really found a definitive answer. 4L Rough Idle when warm - Okay I'll try to keep this short. New coiNeall new Jul 15, 2008 · Everything went pretty well until the very end. I am suspecting the problem might be an Oxygen sensor but i think I should ask around before I start throwing parts at it Nov 22, 2010 · 1987 - 1996 F150 & Larger F-Series Trucks - ~ Runs for awhile then dies - Wont start for awhile ~ - 1987 F150 I6 4. In park that rough idle is not as bad but in reverse or drive the engine tries to tear Aug 23, 2017 · 2004 - 2008 Ford F150 - 06 F150 5. It also doesn't have much power going up hills after the engine warms. Shut it down for about 20 minute drive fine for about 38 miles. Now, let’s fix the issue when engine runs rough after warm up in sequence and later troubleshoot the actual cause of it. When it is cold, it runs just fine, but after 10-15 minutes of running, it runs rough. I have done a complete tune up and replaced timing chain and timing cover. When I start the truck cold, it will idle fine, can drive it, start, stop, and it will operate smoothly. 0 runs great when cold but after 3 to 5 minutes of running it loses power and starts to spuder when in a pull. Starts great, good initial idle, 800 rpm. 9 220,000 miles and manual trans. 9L / 300 - 4. The cam position sensor has been Jul 6, 2015 · Modular V8 (4. 8l constantly running rough - I have owned this truck for three yrs . 0 - Okay, been messing with this and searching forums with no luck. rough idle, after warm. In the warm afternoons, around 85 degrees ambient it always takes a few tries to get it to start up. Still shifts weird and seems worse. It will intermittently start hard, only when warm. 4L 3V FX4 with 200,000 miles. About 4hr job and 80 dollars. Anyways I have the 5. I'm new to the Ford sceneonly had my truck for about 3 weeks. Apr 5, 2011 · My f150 looses power and sputters when it warms up. 0 runs rough after tune-up - Just bought a really sweet '94 F150 XLT 2wd LWB EAOD pickup with 92K on the clock. When I drive like this I can get it to run better after driving a while. 4L 3valve through a P0345 bank 2(drivers side) with a P0349 pending. The first time it felt like it dropped all but 2 Cyl. Runs great until warm, idle drops to 600 rpm, progressively gets more rough, but does not die. Sep 22, 2004 · Modular V8 (4. History: Truck was running okay but acted like a coil was bad when under load. Runs great when cool rough when warm. 2006 STX (super cab) - 4. by raski » Fri Feb 19, 2021 5:19 am. After warm-up, however, it runs rough and barely idles, sometimes stalling. 9 F150 around for a bit, getting it up to operating temperature for at least 20 minutes, and then shutting it down, it has trouble starting if I try to start it again within about 20 minutes. 1 ©2003-2006 InteractivePHP, Inc. Replaced, all vacuum lines, IAC valve, throttle sensor, fuel filter, egr and dpre, coils, plugs. 9 Post by rpinsch » Tue Dec 04, 2012 5:24 am Looking for help in this problem, I have a 1990 f-150 4. gauge runs rough have to keep hitting throdle slight exhaust noise then runs fine until hot but idles low and smells of fuel it has 96,000 now change most sensers except egr, distributor Sep 5, 2015 · 2009 - 2014 Ford F150 - 2010 5. 0L, and I had the oh so common hesitation, stuttering, stalling problem, that so many of you also have. Conclusion. Feb 28, 2019 · Drivetrain - Running rough after warm up-93 F150 5. Check for any stored codes and fuel pressure. rough idle after warm up 1990 f-150 4. Stumbles, coughs, almost dies but doesn't. - My 89 f250 with 5. 4 Engine Misfire/Runs Rough when warm - Hello Everyone, I've seen several other topics about this issue. thoughts, suggestions, 1997 ford f150 xlt, 4x4, 5. 4, and after truck warms up and you try to accelerate it stumbles as a misfire and also if I release the gas peddle it also does the same thing, I changed the plugs and coil packs but still have same symptoms, had truck checked code for misfire but there were none, mechanic thinks it could be the timing solenoids, this Jan 11, 2009 · 1999 - 2003 7. 4 Rough idle after warming up. Feb 18, 2021 · Re: 1994 4. All in all these were items that needed to be done and not to solve Apr 9, 2012 · Replaced the rear tank pump because it's gage did not work. Jan 24, 2023 · 2004 - 2008 Ford F150 - 4. Does not over heat. 3 that after warm up the service engine light comes on and truck runs very rough. I have had this problem off and on for a while now. I have a 2006 F150 with 5. Jun 24, 2023 · 1987 - 1996 F150 & Larger F-Series Trucks - 94 f-250 351w running rough after it warms up - Hello, the truck seems to run fine until it gets up to op temp then it starts running really rough, I'm not real good with mechanics yet, replaced some vac lines, tps, aic, my buddy said to try some kind of air temp sensor Location: Main Index » Forum Index » Trucks-Vans-SUV » 88-98 Fullsize Trucks, Vans, Suburbans, Blazers, Tahoes » SOLVED: 94 K1500 350 TBI rough running when warm FusionBB™ Version 2. One can turn the key to the RUN position without the engine being started and the back of the module will fry bacon in a few minutes. Any throttle feels like Jul 13, 2010 · 1987 - 1996 F150 - 94 5. Its just after it gets good and warm it idles very very rough, and the knocking sound is also very loud. Once it warms up it runs real Apr 20, 2010 · 1987 - 1996 F150 - 87 f150 runs rough after warm up - I bought a 87 f150 2 wd 6 cyl automatic cheap, I replaced the head ( it was cracked ) , head gasket, Intaked manifold ( it was cracked ), intake/exhaust gasket, phlenum gasket, vacuum lines, distibutor cap, rotor, spark plugs, wires, fuel pressure regulator, high Jan 22, 2010 · 1993 f150 5. As soon as the temp gauge hits 185F, the truck will stall when coming to a stop. It has 130k miles. The history: 2 months ago the motor stumbled as it would if you run out of gas. 9 stalling when warm, difficult to restart. I love it so far, but having some issues. Truck runs fine except if it idles and doesn't move for more than 30 minutes or so the idle starts getting rough and the engine starts missing a bit (slight backfire pops out tailpipe). a. at 110K I replaced spark plugs (broke 4) at 115k the rough idle started Feb 3, 2013 · 2009 - 2014 Ford F150 - Rough idle/chatter/shake 5. Just today I drove it for about 30 minutes and covered 7 or 8 Jan 23, 2021 · 2004 - 2008 Ford F150 - Idle starts to get rough and "missing" after the truck warms up. It will eventually die and not start until it has sat off for an hour or so. After the Jan 13, 2012 · Ford Inline Six, 200, 250, 4. Jun 7, 2017 · 2004 - 2008 Ford F150 - P0022 rough idle after engine warms up - Hi, new here and frustrated with my truck. 6 runs rough when warm - The engine runs great untill it warms up then it starts running rough. 4, and after truck warms up and you try to accelerate it stumbles as a misfire and also if I release the gas peddle it also does the same thing, I changed the plugs and coil packs but still have same symptoms, had truck checked code for Sep 3, 2018 · KYford4. It runs fine at idle all of the time. 4 Triton stalling and running rough after engine warms up - I have a 2004 F150 and recently changed my plugs. Does not happen under any specific conditions I can tell. Pulls code P0001, fuel volume regulator, control Jul 14, 2015 · 2004 - 2008 Ford F150 - Very rough idle after warm-up - I have a 2004 4x4 with a 5. 0. 4l Running Very Rough/Stumbling on Startup Only - 1999 F350 Farm Truck (Super Duty forum doesn't get any traction) 5. The center tank still acted like it was running out of fuel. 0 automatic. I gave it a little gas, but couldn't give it much because Jan 7, 2008 · The truck ran perfect for the 8 mile drive up a long uphill mountain road that goes from 6500 feet in elevation up to 8000. rikard Senior Member Posts: 695 Nov 15, 2012 · 2004 - 2008 Ford F150 - 2005 5. It's loaded with everything you could get and the cool two-tone cream/copper paint ala Eddie Bauer. Plugs (gapped), distributor cap, rotor, exhaust manifold gasket are all new. 9 I-6 4X4, 195,000 miles new plugs, cap, rotor, wires, fuel filter just installed, The problem I am having is when the truck has been running for some time and the engine is hot and you cut it off for 10 minutes and try to start it, the Aug 16, 2012 · 1987 - 1996 F150 & Larger F-Series Trucks - 5. We checked the codes. I have a 2004 F150 5. 9l Rich & Rough running warm - We have a 1990 XLT Lariat with 4. I did find several similar posts but I'm still not sure what's up. I set the timing on the cold engine and it ran very smooth. Go through the different possible causes starting from the simplest to the most complex. The entire truck began to shake and the engine sounded like it was on the verge of dying. Once it warms up though (after maybe 10 minutes of driving), Feb 1, 2012 · 1987 - 1996 F150 - '96 4. had codes for allFord told me to change alternator so I didand still truck won't idle in gear or Jul 19, 2023 · If you still experience rough idling when the engine is warm after replenishing lost oil, then your problem could be a failing VVT solenoid or oil pump. 9l having trouble starting warm - After driving my 4. Manually shifting from 1 to 2 then D works fine. 0 This truck runs like a top near perfect for about 10 -15 minutes at first start up when motor is cold but as it warms up engine temp that is is has a lot of hesitation,chugging and missfiring also sometimes dying at a stop light always starts right back up and idles fine while in park or neutral at startup and while warm though. Apr 15, 2021 · 1997 - 2003 Ford F150 - 5. 4L 3V Triton V8 engine will have a rough idle when warm. I have actually run it hard, or free rev it hard after it acts up, and Aug 3, 2005 · Enginge runs smooth at start up then after 2 minutes engine runs rough. Feb 18, 2012 · And as of now, the idling after start up has gotten rough. I still have not been able to solve my problem. About a week ago while cruising at about 65 mph it started to sputter and jerk under throttle. TL;DR version at the top if you hate reading: when cold, the engine starts right up on the first Jun 4, 2009 · 1987 - 1996 F150 - Engine issues '94 5. 9 manual trans. 6L, 5. Aug 30, 2015 · Drivetrain - Engine dies when warm - I have a 1994 F150 4X4 with a 5. Had to be 15 yrs Apr 12, 2010 · 1987 - 1996 F150 & Larger F-Series Trucks - Help! '94 F-150 302 Hard starting when warm - Hey folks. Both cam shaft positioning sensors #5 coil pakbank a cam actuator sensor. 4 w/ 75k miles. cleaned throttle body, mass air, all sensor Apr 5, 2012 · So, after a few years, my good ol' 93 is giving me some issues. The problem is when I am driving I will lose power. Stop engine and runs fine again then runs rough. Any help would be greatly appreciated. I added oil (was at half mark on dipstick), and Oct 4, 2002 · 1987 - 1996 F150 & Larger F-Series Trucks - 91 f150 rough idle and performance after warm - I have a 91 f-150 4x4 ext cab with a 5. I removed cat and changed fuel filter (filter was plugged. I thought it would just need a tune up. - 2008 5. But, if it sits for a while it will start right up and run good until I shut it off again. It runs OK but has some hesitation at low RPMs while warming up. I replaced all plugs and wires, complete new opti spark, new throttle position sensor, new MAF, new Map sensor, new IAC sensor, new TPS, new water pump, thermostat and coolant temp sensor, new O2 sensors. 0L Loss of power - I have a '94 f150 with 5. Aug 15, 2012 · 1987 - 1996 F150 & Larger F-Series Trucks - Running rough when warm - 1994 F 150 4. No codes will come up. If I let the truck sit and cool off, it runs well again until it warms up. I though it was the tranny, but I changed the fluid and filter. It starts up great, idles fine but a little rough mid throttle. 0L and 170k. Single fuel tank. 2, I got a great deal because it ran really really really rough. Truck now runs fine and both fuel pump gages work. I recently bought a 1992 ford f150 4x4 5. The MAF sensor has no vacuum line, a MAP sensor does. If I were driving under light throttle it would randomly cut out, like it had a bad miss, and Dec 27, 2016 · General F150 Discussion - 2007 5. 1987 - 1996 F150 & Larger F-Series Trucks - 94 f-250 351w running rough after it warms up - Hello, the truck seems to run fine until it gets up to op temp then it starts running really rough, I'm not real good with mechanics yet, replaced some vac lines, tps, aic, my buddy said to try some kind of air temp sensor Jun 19, 2003 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 86 F150 5. 0) begins to run rough after it gets good and warm. Looking for ideas to check next time I'm out on the farm. 8l, has a small miss in idle and a more noticable one in drive, no check engine light. 9L) - Rough idle, stalls, loses power after it warms up - For the last few days I've been experiencing this problem where the truck operate normally when cold in the morning, but degrades after I drive it for a while. . 0L 1994 F150 - This is a general question to identify a low rough idle. p sensor the throttle sensor the plugs and wires and distributor cap and button the old girl still runs rough if I go up a hill I have to pump the gas sometimes she will dies and won't start back up for a while I am going out of my mind I don't Feb 21, 2012 · Pre-Power Stroke Diesel (7. 3L Power Stroke Diesel - '99 7. i had this problem since i baught this truck, i gave a complete tune up, plugs, wires, cap rotor, coil, ect sensor,starter,fuel pump,air filter,fuel filter,oxygen sensor,cataylic converter ,iac valve, battery. 0 runs rough under load - my unkle has a 94 f150 extended cab 5. 9 should have 45-60 psi of pressure at the shrader valve on the rail. Oct 22, 2012 · 1987 - 1996 F150 - runs rough after warmed up. A quick flick of the accelerator and she seems to idle up to normal for 5 seconds or so and then falls back down. I did do a scan and came up with 212, same Feb 6, 2011 · 93 f150 running rough Post by mdr78 » Sun Feb 06, 2011 3:48 pm my 93 f150 5. Here is the issue: 93 F150, 5. Sometimes it will stall on the first attempt (cold start) & after a warm up drive, then shutting it off & say, 15 minutes later, come back to start it again, it may stall on the first attempt. 1. 4L Rough Idle When Warm - Hi there, Been having this issue with a 2007 F-150 (5. - Truck is a 93 short wheel base single cab, engine is a 4. 9 rough start when hot - I just bought a 1996 F-150 4. After the truck dieseled a couple of weeks ago (blew gas back up through the carb on shutoff) it started to run rough after it had warmed up. Aug 15, 2013 · 2002 F150 runs rough after warm up???!!! I just bought this truck its a 2002 f150 with the 4. swiss241 New Member Posts: 20 But when it warms up, its good. 6L 4WD - 185,000 miles I've been daily driving it just over two years. 13 posts • Page 1 of 1. I changed out all the plugs with Motorcraft and put on Summit racing COPs. Apr 23, 2010 · The TFI modules get blistering hot no matter where they’re mounted, even when the engine is not running. 4 v8, runs Great/warm up; Rough idle/getting worse each day, after warm. 4 3V Stalls after warmed up - Truck starts up and idles fine when cold. When running on the rear tank with the new fuel pump the truck now ran fine. It is getting spark per my in line spark tester, and you can hear the fuel pump come on and pressure up. Right after I got it I had the Jul 23, 2023 · 1987 - 1996 F150 & Larger F-Series Trucks - 94 f-250 351w running rough after it warms up - Hello, the truck seems to run fine until it gets up to op temp then it starts running really rough, I'm not real good with mechanics yet, replaced some vac lines, tps, aic, my buddy said to try some kind of air temp sensor Aug 6, 2017 · I have a 1996 Ford truck with a 4. 9) that runs rough I have replaced the 02 sensor the m. Jan 11, 2012 · 1987 - 1996 F150 - My 5. It starts and runs good when cold, but once it warms up it dies and will not restart. 3 runs rough after warm-up - I have a 99 F350, 7. Oct 6, 2019 · Maintenance Shop - 94 f150 running rough - Hello all, Well I spent the day doing nothing but trouble shooting, and didnt throw money at one part haha. In the mornings when temp is cool it runs great. Truck is in probably the best shape a 2004 can be in, bought it from the south and really want to keep it. 4 runs rough when warm - I have searched and read numerous posts on this subject. Replaced: O2 sensor, IAC, TPS, Distro, PIP, ICM, Cap, Rotor, Plugs, Plug Wires, CPU Other things I Mar 8, 2013 · 2004 - 2008 F150 - 2006 5. I have a 1993 F150 5. - My truck began acting up about 2 week ago. 4(130K miles) that will start and run fine. It cranks fine and Jul 25, 2014 · 2004 - 2008 Ford F150 - 2004 F150 5. When that happens, it is VERY SLOW to accelerate. I cleaned the throttle body and have new IACV. After some diag I decided to change the Cam Sensors. 3L IDI & 6. 0 v8 when he drives it it runs rough at about 2000 to 2200 rpms any other rmp its fine spits and spuders kinda confused replaced the plugs about 8000 miles agow newer taylor 8 mm wires accel coil who knows how old was on when he Jul 18, 2016 · Drivetrain - 94 Ford F150 E40D Shifting Issue - Truck has about 189,000 miles. Apr 5, 2017 · 1997 - 2003 Ford F150 - rough idle, after warm - 4/5/17. Not all the time, just most of the time. Could it Feb 9, 2015 · 2004 - 2008 Ford F150 - 2006 F-150 5. May 27, 2010 · just got 94 F150 351 owner said at 20,000 this started to happen , starts fine when getting to just about to hit normal rang on temp. Check engine light comes on every now and then but not every time. It runs fine until warm up. No codes Then it went back to missing. Nov 15, 2010 · 1973 - 1979 F-100 & Larger F-Series Trucks - Runs rough after it warms up? - I have a '78 F150, 351m, Motorcraft 2150 carburetor. So I'm learning. 4L) - 5. runs fine for about the first 15 mins. 9 Starts and runs great. 4L 3V Rough Idle - Help - Hi Folks, Read a number of helpful threads related to my issue, still no luck. I replaced the fuel pressure regulator & that helped a little. Automatic trans started shifting hard into 2nd gear, would rev up and then bang into second. Jan 17, 2009 · Not sure if your model year falls into the category - but there's an issue with the sensor tubes plugging up for those with the differential pressure sensors. Perhaps try fashioning a piece of gasket material that will block off the EGR input into the air plenum. hirbqjc dtlcsez aukpiu explrg ysf ofhqzj btzo upex hpddbcy wmtqlk