Ford 7.3L Power Stroke (1999-2003) :: Truck Starts Then Dies / Cuts Out When Running

I have changed pickup filter in tank and cleaned 2 tube filters in tank i thought that would fix it.

View 3 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Dies When It Comes To Stop

I know there are a few threads floating around regarding truck dieing, but mine is slightly different than the others, maybe its the same culprit, maybe not, but i thought i would start a new thread just in case.

First, I commute about 50 miles to work everyday, truck gets plenty of interstate highway run time, smooth as silk. About a month and half ago when i almost got to work I slowed to stop at a red light. As I came to a stop the truck "stumbled". Acted like it wanted to die but caught itself and kept going. I said whooaaaa girl, what this? Ive had this truck for almost 10 yrs now and never anything like this. About a week or so later, same commute, same red light, cept this time it dies. Starts right back up no problem. Just acted like someone turned the key off.

Then a week or so after that, while driving home this time, as I pulled up at the house to check the mail at the mailbox, when i came to a stop it died. Cranked right back up. Before I could put in drive, it died again. Cranked right back up and i drove on into the driveway. Then a few days later, while checking the mail again, it died again. Cranked up immediately and parked.

Today, while driving home, after i had gotten back to town, but before i got home i made a stop at bank drive thru, when i came to a stop, it died. While cranking it wanted to start and kind of stumbled on itself and died. Then it cranked right up and i came on home no problem.

So far it only occurs after approx 45min to 1 hr of operating time so the engine and everything else are at temp and far from cold. After reading thru some of the other threads of similar but different conditions (cold start dieing, dieing while under power, etc) Im getting flooded with ideas of what could cause it, but not settled on any.

1.Could be failing ICP? (original, has never been changed, 317k+).

2.Could be plugged fuel filters? (been a while since changing, approx 30k+)

3.Could related to one of my own earlier threads regarding possible failing alternator (when rpms drop can volts drop enough to kill engine?)

4.Could be loose ignition switch? (about 2 yrs ago i had to swap the blinker switch, to get to it had to remove the ignition. Upon re-installation the switch never did get tight as before and was loose. Been loose ever since. To the point that with key out of ignition and door ajar i will get the door chime as if the key was in ignition. I can bump the ignition, and chime goes away. Been this way for two years and no apparent problems. Until now maybe?)

I was thinking ICP after a few of the other threads, but after tonight Im leaning towards the ignition switch. I guess i can try to wiggle the switch after cranking tomorrow and see what that does for a trouble shooting effort. Is there a way to trouble shoot the ICP to see if its failing or not? Isn't that a fairly costly sensor? Would hate to buy one and not be the cause, but after 317k i may need to buy before too long anyway.

View 5 Replies

Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 Starts Then Dies - Shut Down While Driving

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.

View 9 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Just Dies Like Shut The Key Off When Warm

I have a 99 7.3, I took off driving the other day and after about 10 minutes the truck just dies like I shut the key off but everything was still on. I tried to restart it and it would fire for just a sec then die. I set for about 15 minutes and tried again it fired up and ran about 5 mins then the same thing. I had a buddy hook it up to his scanner and it has a p0605 and another icp code.. We changed the icp then erased the codes.. Ran some rest through the scan took with the truck running and no codes so we took it for a drive made it about 20 minutes away and same thing but this time has the p0605 code again. Could the pcm be bad? I also noticed the electric pump is always on all the time it will cycle at least 30 seconds every time the key is turned??

View 14 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Hiccups Under Idle And Dies When Warm

I've been working on my truck for months now on and off. I thought i finally had it back, but i have (again) problems with running. it basically only ran for a full day (hauling trip) after getting it back up and running. next day, it died on me on the road.

The new deal right now is that I can make the truck start and it will run, but it has little "hiccups" or misfires that will happen every now and then. Once it gets warm enough, the idling sounds chopped (best way i can explain it). After "chopping" it will then run fine (until the next chop). then it seems that once the truck gets warm it just stalls out. When that happens (shutting off) i can't get it to start right away. i have to wait awhile before it'll start and that lasts only so long.

The truck puffs a tiny bit of white smoke. not constant but more like a "puh - puh - puh" ....I've changed out quite a bit of used up parts now...

Turbo
Injectors & wiring harness
valve seals
IDM
ICP
IPR
CPS
MAP
fuel pump
vacuum pump
glow plug relay
starter relay

All the sensors are OEM. There's fuel in the fuel bowl, and the filter is clean. Plenty of oil in HPOP & oil level in crankcase is good. Have plenty of fuel.

Air filter is clean and fine. No codes. No lights.

2001 f350 7.3 320k on it.

View 14 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Misses And Randomly Dies Only When It Rains

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.

View 7 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Stalling While Driving / Dies For A Second On Accelerating Or Cruising

Like the title says my truck has been stalling while driving. Accelerating or cruising it dies for a second, two at the most, and then just keeps chugging along again.

I thought i'd fixed the problem last year when I did injector O-rings and 50 cented my UVCH. It hadn't done it since, until two days ago. Started out with a two good solid stalls while gently accelerating up hill. I had thought maybe my fuel pickup foot had finely given up the ghost because I was below a quarter tank. But I filled her up full, and then she did it again about 50 miles of driving later.

I didn't catch the first four stalls on my torque app, because I'd just recently decided to stop logging every trip, with the thinking that it had been half a year problem free, why keep logging waiting for something that isn't going to happen. I did catch the 5th stall on the torque log. But I'm having trouble trying to figure out where it happened in a 30 min log.

First question where would yall start in tracking this thing down? Next what data actually should be logged? I think I've got some extra stuff in my logs that isn't necessary, and is maybe bogging down the system. I get one data point per second resolution on my logs. Are there ways to improve the resolution, will getting rid of some PIDs work?

Lastly I need to attack this thing smartly, without throwing time and money at unneeded parts. I had surgery and I've been out of work for 3 months and I'm looking at another 6 before I'm making money again, and there is no unemployment for the self employed. Also I only get 3-4 light weight upright hours a day to work, exceed that and I'm back on the couch battling swelling for a week.

Also is there anything I can do while driving to "flag" the stalls so I can find them more easily in the logs?

View 14 Replies

Ford 7.3L Power Stroke (1999-2003) :: CEL On - Long Crank / Truck Starts Losing Power And Eventually Died

On the way to work, the truck seemed to have a miss at idle and the CE light came on. Long crank to start leaving work, and truck starts losing power and eventually died. No smoke while it was losing power. Towed it home and checked the fuel pump and lines for blockage and found nothing.

2003 7.3 F-250 430K miles
strong cranking but no start no smoke out exhaust
Oil changed recently
IPR changed
Both UVCH gaskets and pigtails have been repaired.
ICP sensor and harness changed, also disconnected no change in cranking.
fuel filter changed today (no oil in bowl)
3/4 tank of fuel
dash gauge for lpop goes up to normal range during cranking and oil light turns off.
WTS light comes on and turns off as normal
tach gauge moves up between 100-200 during cranking
fuel pump turns on and pressurizes system like normal and turns off.

Ordered AE for the truck, and it directed me to the passenger side bank high open. Fixed the harness on that side and still nothing.

Sent off the IDM and it passed with flying colors

So now i'm leaning towards the HPOP, but would hate to fork over the cash for it and still not get anywhere. I'm going to take the valve covers back off and check the discharge ports for the injectors tomorrow.

View 14 Replies

Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 - Truck Lost Power Then Died - No Codes

I have a 2002 F250 Super Duty. Was driving it and it started to lose power and shut off. Then wouldn't start like out of fuel. No engine light no codes. Truck has 155k on it. So just because I replaced fuel pump. Truck runs but not right it's ruff no power kinda back fires in exhaust. I check wires and plugs under valve covers all seems ok. I ran truck and pulled each injector loose and engine would stumble. As in they are working. I replaced cps. Just because still the same. Then the truck started running right. But the truck runs but has knock but knock goes away and truck has full power. Yes oil is full and I change it regularly. The problem is off and on like electrical.

View 7 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Starts And Runs For Forty Five Seconds Or So

Trucks been running perfect for 11,000 miles atleast. its last issue was a bad turbo but that was my fault. No issues whatsoever since. 10 miles down the road from work last night truck had a slight miss in between 55-60 for four or five seconds, I put the pedal down and brought it up to 75 or so just to see if it was my imagination and it felt fine so i wrote it off. It ran fine to the house we're working on i wanted to check on before I got home.

Parked it, it idled down to 650 before it came back up to 750 and it never does that and sounded different then it usually does. so i felt something was definitely up. i shut it off, was at the house about a half hour before i decided to head home, started and ran fine, three miles down the road the slight miss came back, it seemed to go away if i got on it pretty good and when i let off but just cruising with slight throttle it had the slight miss.

Got to my road where i had to slow down and turn and it idled down and died. I coasted over, unplugged the icp sensor and it cranked for 10 seconds or so and lazily came back to life. I got it home running decent and parked it. Scanned it with my old super chips tuner and it came up with a p0340 camshaft position code.

Matched my symptoms i felt so this morning i decided id go back to work and grab my spare out of my wrecked truck. truck started and idled perfect. made it to the end of my driveway before the miss came back and then it just died. took the car to work, grabbed my spare camshaft sensor and my maximus scanner, came home scanned it, no returning p0340 cam code but i swapped the camshaft sensor anyway and watched icp and ipr data, the ipr voltage is where it should be and rises while cranking while cranking.

ICP is climbing to almost 3,200 psi and it will begin to run when it peaks out. she'll fire for 45 seconds after 25 seconds of cranking or so and then it'll just die. if it sits for a few minutes it takes a few seconds of cranking before ICP will come off of 0. I've come to the conclusion that it is making high pressure oil it is just dumping it as fast as it can make it. I changed the ipr out because that can do it, it didn't change anything so I'm on to believing an injector is dumping it as fast as possible.

Is it possible for something to come undone inside the injector to make it dump high pressure oil or will a bad o ring cause this? i'm leaning towards a failing injector as when it does fire and run its definitely misfiring and i just put new o rings on them when i swapped them over from my wrecked truck but that was like 45,000 miles ago as well..

View 6 Replies

Ford 7.3L Power Stroke (1999-2003) :: Code P0264 - Unplug 8 Injector Truck Almost Dies / Plug It Up And Smooths Out

Early 99' model I picked up. Blew the oil cooler and had lot of pressure in the Degas bottle, so did head job and oil cooler and now I'm Still getting a P0264. Unplug #8 injector truck almost dies, plug it up and she smooths out...

View 7 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Starts And Runs But Throttle Doesn't Work

So I installed my chip today. It's got anti-theft, high idle, stock, 50, 75, 100 tunes.

With the chip installed the truck starts. In all tunes except "High Idle" it idles at about 1000... normally it would be like 500-600. High idle position works (1100-1200 RPM). Anti-theft position works - it kills the truck. The throttle does nothing when pressed no matter which position it is in. Stock, 50, 75 or 100.

I removed the chip and the truck runs fine. Did these guys send me one for an automatic? Or do I have the wrong computer in my truck? My computer code is DAC3 and the truck is a 2000 with a manual transmission.

View 6 Replies

Ford 7.3L Power Stroke (1999-2003) :: Truck Won't Start / Loud Click On Passenger Wheel Well And Then All Electric Completely Dies

Just tried putting a ts6 on my pcm. First time I hooked it back up I just got cranking with no start. So I pulled the pcm terminals really well plugged it back in and got nothing. I do not remember because I was kind of in a hurry if I unplugged the batter cables and back on the second time. I plugged it back in after cleaning terminals and went to start and got nothing. A loud click on passenger wheel well and then all electric in truck completely dies. I hope I didn't fry my pcm. Maybe just blew a fuse or starter relay?

View 6 Replies

Ford 7.3L Power Stroke (1999-2003) :: F250 Cranks Great But Would Not Start

I have a '99 F250, 7.3, CCSB with just over 127K on the clock. I went out of town for 10 days and was ready to get out of the grocery getter and into my truck. I hop in and it cranks great but would not start. I pop the hood and start with the easy stuff. Made sure all plugs/connections were good, check. Relays and fuses are still in good order (under hood and dash), check. Fuel pump was replaced less than a month ago (works great) with fuel in fuel bowl (new filter), check. Try to start a few more times with no luck, so I tinkered around for few more minutes and it starts right up and drives perfect.

Drive around, truck is on and off as usual throughout the day and go back to work next day around 10:30. Truck starts as normal. Get to work and have to run out but truck doesn't start again. After key is in on position for 15-20 minutes while checking fuses and such it starts up and runs perfect. I drive around for 20 minutes and return. I got off about 5 hours later and it doesn't start. Leave key in on position while I'm explaining issues to a buddy again 15-20 while key is on it starts right up. I drive home and park and I haven't been able to start it since.

From reading forums and watching you tube I'm leaning towards IPV or CPS but no one has described the problem as I've had. I do not have monitors, tuner, or anything aftermarket but I'm a mechanic and have a descent set of tools at home.

View 14 Replies

Ford 6.0L Power Stroke Diesel :: DTC P0381 - No WTS Light But Starts And Runs Great?

My 03 F250 6.0L Starts and Runs fine but will never illuminate the glow plug/ wait to start light? Scan tool test on GPRM and tells me everthing is OK. Cleared all codes, turn on key, no WTS light and throws P0381 DTC every time. What my problem is?

View 4 Replies

Ford 7.3L Power Stroke (1999-2003) :: 2001 - Changed UV Harness / OD Flashing But Running Great?

Had to change the UVC harness on my 2001 7.3. Truck fell out. Trailered it home and changed the UVC harness on the passenger side. Truck is running great, but now the OD light is flashing. Can't read transmission codes, but was wondering if something from the bad harness could have caused this? Any thoughts?

View 7 Replies

Ford 7.3L Power Stroke (1999-2003) :: F350 Died - Cranks Great But No Smoke Or Fire

While driving my 99 F350 7.3 it died and I was lucky enough to coast home. No WTS light, no tach movement when cranking, no fuel pump, no CEL, Cranks great but no smoke or fire. New CPS & PCM still no lights or tach. Moved relays checked all fuses. WTF is wrong?

View 14 Replies

Ford - Mountaineer :: 1999 - When Try To Crank Truck Starts And Immediately Dies

When I try to crank the truck , it starts and immediately dies. This happened several times. The last attempt I began patting the accelerator when I turned the key. The truck cranked and I was able to keep it running by feathering the throttle. it ran rough. At higher RPM it ran ok. When I let it idle it idled rough. After engine warmed it idles and runs fine. Engine started without trouble when warm.

View 1 Replies

Ford Super Duty (1999-2016) :: Truck Starts Then Bogs Down And Dies After About 30 Seconds

Simple enough the truck starts then after about 30 seconds it bogs down and dies. I am getting these codes.

705 Transmission Range Sensor Out of Position

708 Transmission Range Sensor Circuit High Input

720 Output Speed Sensor Insufficient Input

743 Torque Converter Clutch Circuit

745 Pressure Control Solenoid Malfunction

1747 Electronic Pressure Control Solenoid A- Short Circuit

Sounds to me like the converter it locked up. What do you think? Its a 5.4L

View 3 Replies