Ford F-150 - 1997-2003 :: 2002 4.6L Dies While Driving Randomly
Sep 18, 2012
My 02 F150 4.6 4x2 shuts off while driving - usually when I am coasting, but also at varied speeds, even highway speeds. The motor dies, the gauges all go to 0, and the odometer shows ------ I have to shift to N and coast...if I try to re-start it just turns over and over...gauges still all at 0.
I have determined that if I reach behind the fuse panel and wiggle the wiring harness, my gauges will come back and I will be able to re-start it.
I noticed yesterday, that after it did this and I got it re-started, the red 'Theft' light was blinking rapidly. A clue, perhaps?
I have tightened the 10mm bolt that holds the two wire bundles into the back of the cabin fuse box (by driver's door).
Where to start? I have crawled under the dash, looking for loose, chaffed or otherwise odd looking wire, but so far no good.
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Ok, so my 2002 f250 died on me last Tuesday out of the blue, pulled it home and found fuse 23 I think ECU power was blown. I removed my Hydra, and put a new fuse in it and all seemed well, then Friday evening on my way to dinner was driving along and truck shuts off like someone turned the key off. I replace the Crank sensor, even though I had put a new one in after the first time it died, which was last Tuesday, still would not start.
Pulled it home, went out Saturday morning to look at it and hit the key and it fired right off. At this point I don't really know where to look, I wiggled every wire I could find while it was running Saturday and no change, but it does seem to have a miss in it while it is idling...... I am not sure where to start looking....
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My 2002 F250 7.3 randomly dies while driving and seems to only be when I hit a bump no matter the size. I have checked the valve cover harness connector outside of the valve covers and they look fine. I checked the ECM connection took it off and reconnected it.
Changed the CPS censor twice, checked the ICP sensor, checked continuity of all the glow plugs through the valve cover harness. Checked the fuel pump, checked all related fuses, changed the fuel filter, checked glow plug relay, batteries hold good voltage and were recently upgraded to bigger batteries.
Engine runs just a little rough but not enough to be of concern. Air filter is clean and oil level is perfect. What could possible be causing my truck to randomly die when it hits a bump and not start back right away??? This truck is new to me and its the first diesel engine I have ever owned.
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Truck starts right up. Will die if I dont give it some gas for about 5 seconds of so. No check engine lights. I did leave the hood open yesterday adn the auto sprinklers came on. I completely forgot about it. I check the air filter before I started it and its dry so I dont feel its water intrusion. I shot a quick burst of carb cleaner in the IAC and then reinstalled it. No joy. When running it will idle and runs fine. If I unplug the IAC it stumbles and almost dies. Any way to test the IAc, TPS or MAF sensor ? I hate just throwing parts at them without diagnosing them properly.
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Got this truck used, it is a 2001 F150 4 door lariat 5.4, 4x4. It now has around 108k miles on it. The truck dies while driving down the road every couple weeks or so. It will restart after a minute or so and then seems to be fine. The ABS light is on, no codes or CE light.
The last couple months while your going down the road it revs up to 4k rpms or so while your driving like the OD is turning off. The other day it wouldn't start in the morning, I changed the fuel pump relay and it fired right up. I put the old relay back in and it still fired up!!!!
I decided to take it to the dealer today and on the way to town it shifted out of gear while driving at speed, the speedo turned off and the odometer turned off as well. I shifted to N and then back to D, nothing, I hit the OD button and it flashed but still no go so I coasted to a stop, truck was running at idle.
I turned it off, restarted and everything worked just fine again and went on my way to the dealer. Still no CE lights.
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I just bought a 99 f150 it has 257000 miles on the truck, and a motor and transfer case from an '01 with 215000 miles. I'm not sure about the maintenance on the truck but when I'm on the highway the truck randomly stutters. I was thinking it was coming from the tranny because the tranny was overfilled by almost a quart but really not sure.
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I have a 2002 ford excursion. I know they have cali emissions. It runs fine then suddenly dies while driving. We've replaced the glow plug switch and relay. Neither one fixed the problem. we washed the motor a while back and it fried the programmer wiring.
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My truck is an 02 F250 7.3 with 280,000+ miles on it, so I wouldn't be surprised if I might have a number of things going wrong. It runs pretty good, but is still far from 100%, at least up to my standards. So the problem has been going on for the last two or three weeks and got worse today, and there were a few things leading up to it as well. I'll start off with the first thing that happened that I think might be related. It was about 6 months ago, my buddy and I were putting my new headlights in.
It was parked in his garage and we backed it out a little bit to try and adjust them. It was sitting there idling for a minute or two and just shut off or almost stalled out. Tried to restart it and it wouldn't start, tried multiple times to no avail. It acted similar to when I had glow plug troubles when I first got the truck, it would just crank and crank, but never actually kick over and start, along with putting white smoke out the exhaust. Ended up waiting about a half hour and then the truck fired right up with no problems after that, so I didn't think much of it.
Then fast forward to last week to when something similar happened. Started it up after sitting for a few days, started right up, idled for a few seconds and then just shut off. Started it back up ran for a second and died again. Tried a third time with the same result. Fourth time fired right up again and stayed running, let it run for a few minutes and was fine. Also along with this, there was a bad squeaking coming from the front of the truck, like what a belt would sound like. I have recently replaced the belt because it was squeaking and actually got chewed up and almost shredded completely apart.
So not sure why it is squeaking again, but not sure if this could be related or not. Then took it back to my dorm room to get my stuff, and then made it the hour or so drive home from school, without issue. Even went to a few stores before I went home, and shut the truck off and started it back up multiple times, again with no issues. When I drove back earlier this week it was fine until I got there and put it in park. It idled for few seconds and then cut out for a second, but then idled back up and continued to run fine. It has done that a few times as well. So it will do it on a cold start or after already fully warmed up.
Then it got worse today. Again had trouble starting it cold, same as what I explained early. Except second time cranking it wouldn't start at all, then on the third crank it started up and stayed running. But on the drive home is when it got worse. About 5 or 10 minutes into my drive, was just cruising doing at about 45 or 50, and truck just shut off, died/stalled out. It cut out and shut off for a second or two and then started itself back up and continued on like nothing happened. It scared the crap out of me the first time it happened, I was waiting for something like that to happen, but still wasn't quite ready for it.
The truck acted just like it would before you start it, with the key on, dash lights worked and the radio still worked. It did this 4 more times in similar ways, would die and then start back up, at various speeds and at roughly 5 or so minute intervals. I decided to just keep going as long as the truck would start and stay running, hoping to make it home. It did it a fifth time and this time the truck completely shut off and wouldn't restart itself. It was hard to see, as I was watching a few different things at one time, but I think it tried to restart, I noticed the tach bounce between 200-400 RPMS and then die. So I had to pull over and then restart it, fired up and drove fine. That was about half way home, and I made it the rest of the way home without any more problems.
So obviously I'm wondering what would be causing the truck to do this? I've done some reading and have a couple ideas, but not really for sure on anything. I was thinking maybe the CPS, I think it can cause a no start issue. Could ICP or the ICP sensor have something to do with it? I was also thinking maybe something fuel related, such as fuel pressure or a bad fuel pump. Any of those sound to be on the right track?
I have the torque pro app, but not exactly sure how to use it yet, and also just got access to my Uncle's Snap-on scanner, so I ran some tests and pulled some codes. How to more utilize these tools in diagnostics. I did get a few codes, but I'm not exactly sure how they might be related. The codes are pulled are:
P0470 Exhaust Pressure Sensor Circuit Fault. Just cleaned that out as well as the tube about a year ago, but I guess could be clogged again or has gone bad.
P1274 Cylinder 4 (E) High to Low Side Open. Did some reading and figured out that this could be UVCH related. At the same time, about a year ago, did new injector O-rings as well as all new Motorcraft UVCH's, so can't imagine that one is bad. Or that one could be loose, I would have guessed it would have happened more when I first did them, not a year later, but who knows.
Also pulled P1876 T-Case 2wd Solenoid Circuit Fault. Not sure if this is related at all, but also not sure what it means either. I read that it could be ESOF system related, which I do have, but I have manual lockout hubs, so maybe that's why it throws the code.
Also a few things that may or may not be related, but I think worth noting. Ever since I've had the truck the check engine light will pop on and off sometimes. It will do it on a cold start or, when I first start driving and its not fully warmed up yet. It does it most when the engine is still cold, and it almost never comes on once the truck is fully warmed up, but has came on and off more frequently lately. When driving, it will only stay on for a few seconds and more often when I'm lugging the engine or at lower rpms, and will commonly shut off if I let off the throttle.
I don't think it really comes on at higher rpms. I also have a slight oil leak in the valley of the engine, seems to maybe be coming from the front of the motor. Nothing too serious, leaves a small puddle where I park, loses enough to be at the add mark, a little before an oil change. Changed the oil about 1500 miles ago and have been able to notice a slight drop in oil level. Also I have changed the fuel filter in the last 500 miles.
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I have just inherited my recently deceased father's 1992 Ranger with the 2.3 liter engine. He was a Ford Mechanic but got to ill to worry about fixing the Ranger. So, let me begin, the engine dies randomly, (at idle or in gear driving doesn't matter what gear or speed), turning key to off and then to on will allow vehicle to restart every time. No "Check Engine" light has ever lit, I do have an "Antilock" light that comes and goes. The engine codes I keep getting are: 10, 218 and 222.
Code 10 is a computer check code,
Code 218 is "Loss of Ignition Diagnostic Monitor (IDM) signal/left side, and
Code 222 is "Distributorless Ignition System - Loss of right side ignition diagnostic monitor (IDM) signal.
These codes were from my Innova reader. I have read where other similar problems were fixed with a new Crankshaft Position Sensor, replaced mine, no change. Another symptom I just noticed is my temp gauge stays near the cool end when it should be higher.
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1991 suburban randomly dies while driving..... I will only have headlights and interior lights.... no other power .....wait 5-10 minutes fires right up.
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My 2000 Volvo S70 just started stalling while driving: it completely dies while in motion. This has happened 4 times in the past week, both times (oddly) in the morning on my way home from the gym. Both times, it's happened we have had very damp weather, and it's the second start-up of the morning. It has happened at slow speeds, and it feels as though it is out of gas, but it is not.
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My 1998 Nissan Pathfinder dies randomly while driving. There is no consistency to when it dies. I will be driving down the road and then all of a sudden the car will not accelerate and it eventually dies. The other issue is it won't start from time to time. It sounds like it wants to go, but it won't. Eventually it will turn over. It has been to many mechanics. The crank shaft sensor has been replaced and the mass air flow sensor. Neither one of these were the problem. They now think it is the distributor possibly. There are no codes saved. It has been sitting at the shop now for 9 weeks.
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Having problems with the truck - either a no crank situation and now a complete shut down while driving at any speed.
Dash is blank with no power when truck shuts down, here is the hitch with the no crank, I pulled and replaced the PCM module and the truck fired up without hesitation. I had to do this a few times over the course of today to get home. I can live with having to do that for a while but it is unnerving to have the truck shut down with 0 notice.
Throttle body was just cleaned, and all starter/battery connections cleaned and protected. Brand new PCM relay. What does this relay have to do with reset, for clean start up after removing it and then just putting it back in it's place? Would there be any solutions for the dies completely while driving, or fails to crank?
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My 1989 Honda Civic engine randomly dies usually while driving. When it dies I hear a relay click sound coming from the area of the glove box. The tachometer and speedometer go immidiately to 0. The dashboard indicator lights all go out. The turn signals windshield wipers and electric windows all quit working, but the emergency flashers, radio, and comfort system blower continue to work. I think the transmission goes immediately into neutral too because deceleration is much slower than it would be if the engine were running and I take my foot off the accelerator. So far I have always been able to restart the engine and continue driving, though it often takes many tries before it will successfully restart and keep running.
In an unsuccessful restart the engine will fire and start to rev up but die again as soon as I release the key from the Start position. Occasionally the engine will spontaneously restart while we are coasting to a stop. We took it on a long trip this summer and it would almost always work fine until we stopped for gas, food or restroom break. After the break it would die one to three times in the first 5 miles and then would work fine until the next break. My mechanic says the computer is not storing any failure codes and he is having a hard time troubleshooting it because the problem only randomly occurs. I'm wondering if the problem might be a flaky electrical connector somewhere.
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Truck in question is 2002 F150 4.6 with 150K miles. Crew was on interstate tonight driving 65 MPH and truck shut off. They called me out to trouble shoot. Engine had oil (was a quart low) and will not start. Starter engages but will not turn motor over. Had truck towed back to my shop. I removed belt just to see if it may be a locked up pulley i know, long shot)... it was not.
Employed called a shade tree mechanic he knows and trusts. He said was likely a broken timing chain and that is a common problem in 4.6. Said locked engine is probably because broken chain is wrapped around shaft. When I turn key fan does move about 1/4 inch.
1) Does this sound like a possibility or even a plausible explanation? Just trying to verify the information.
2) If this is the case, would a repair be advisable, or is engine likely shot and i should just replace it?
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I am at a loss on what this could be. For the past 8 - 9 months my truck will randomly miss and if I am going slow enough it will cause the engine to quit but only when it is raining. I sometimes get a service light when it happens but as soon as i turn the key off and back on it goes away. My truck runs perfect otherwise and even when it rains except when it randomly does what I just explained.
This started when I replaced my passenger side valve cover gasket and I also took out my "brain box" (don't remember what it's called) and put it back in (didn't replace it). I did have the up-pipe replaced as well around the same time and put in EGT, boost and trans temp gauges. That's about the only things engine compartment wise that's been done.
I did just take it to a shop to put on a scanner and after his testing it did spit out 1 code. It was the cam position sensor. Can this sensor cause what I have explained? Like I said, this only happens when it rains. Doesn't matter if it's poring or barely sprinkling.
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My 02 6.8 v10 4x4 4.30 X has a big problem. I was driving on sand and all of the sudden it stopped and dies. Had no trans fluid and a dead battery. After paying $450 to get it off the beach i filled the trans fluid and got a jump and it runs. When put in gear wether in 4WD or not it does NOT move. Only when put in neutral and pulled ... red dot is pavement, blue is where i got to, star is where i broke down on the way out...smh
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I really liked my 97 f150 4x4. It was a very very good truck... until last night. It randomly shifted into 4hi. Okay, shorted wires, right? Eh... well this morning i was gonna take it into the school's shop, and now its switching between 4hi and 4lo... on its own... so i disconnected the switch in hopes that that was borked and it still keeps doing it. Also, disconnected axle actuator and it didn't unlock so its sitting in the parking lot currently...
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A year ago, I was driving down the highway ,gas low,and it just died. Half hour later stasrts right up. No problem since then until 2 months ago. It's died 4 times in last 2 months regardless of how much gas in tank. Just stops out of blue when coming to stop signs. Half hour or so will start right back up with no problem.
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I have a 2002 Celica GT.
It was driving fine for a few months after buying it and now all of a sudden it will just die while driving down the road. It will start and idle fine for hours but after about 15 minutes of driving it down the road it will just die without any kind of notification. It will start back up and run again after I let it sit for 15-20 minutes but will do it all over again but if I try starting it right after it dies, it will start and immediately die again. The only codes it is reading is the #1 spark plug is misfiring, but it has been that way since I bought the car.
I was told to clean the O2 sensor and throttle body, which I did and it ran fine for a few days but is back to dying randomly.
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My Windshield wipers randomly come on once in a while. I've noticed it more on a warmer day, but sometimes even when it is cold. There is really no pattern, sometimes the go once, sometimes they go for 2-3 minutes. Where should I start? Switch or wiper motor, maybe something else?
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