Ford 7.3L Power Stroke (1999-2003) :: 2002 - Won't Shut Off?
Jul 31, 2016
Lately I had a couple glitches seemingly unrelated with this electrical system. Something just failed. I have two new motor craft batteries cleaned all wires/ clamps. The alternator has been tested good. The other morning I started my truck and smelt a wire burning up before I took off. Battery positive to glow plug relay was hot. The solenoid was junk so I replaced it. Still not the problem. With the battery positive hooked to the solenoid, truck will not shut off. It will shut off by key if the wire is unhooked. I do know this. When hooked up, the battery positive is feeding voltage (.4v) through a new solenoid to the PCM, thus keeping the pcm life when the key goes off. Bad pcm? With the battery positive hooked up to the glow plug solenoid. There is such a large draw that the charging system cannot keep up. Wich out me on The side of the interstate at 1 am as I watched my lights grow dimmer til truck stalled. U hooked the battery positive from solenoid got a jump and been fine since....however, there's a major problem lying there right?
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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 am fairly new to powerstrokes, but have a general understanding how the 7.3l operates, and how the fuel system works.
The problem i am experiencing is a crank, no start. The truck has been great for the year and a half that i have owned it. Always cranked great and never any starting or running issues. One day upon cranking, i started the motor; it started normal running good for a minute until the motor suddenly started shuttering and then the motor shut off, happened rather quickly. The truck started up immediately after that and died....repeating the shutter until dead. Now the truck will not start.
Specs on truck:
2002 7.3l
230,000 miles
Manual transmission
Here's what i have replaced so far:
New parts include:
IPR (motorcraft)
ICP (motorcraft)
EBPV (napa)
CPS (napa)
IDM (reman)
Here are some of the diagnostic values i have collected during cranking: (FYI: i am a little confused on what the values mean and what they should be in order for the motor to start):
ICP: 2218 psi
ICP duty cycle: 41%
EBP: 265 kpa
battery voltage: 12.0
Rpm: 355
Things i have checked so far:
Oil is new and level is good.
WTS light cycles as normal.
Fuel bowl is full and over flows with cap off while cranking.
Fuel tank is above half.
Glow plug relay is good.
I was throwing a code for the PCM, but i removed the bully dog tuner and the code has since cleared.
HPOP oil is an inch below full.
I made a gauge set and dead headed HPOP yielding 1500psi.
Upon cranking i am seeing some smoke, i guess, but its kind of hard to tell from the drivers seat.
This is where i am at so far. I don't have a way to buzz test the injectors or tell if they are leaking past the orings. I have the valve covers removed, but i have been putting off pulling the injectors to replace the orings.
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Last November I forgot to plug my truck in and it got down to 0, my girlfriend tried unsuccessfully to jump start it. When I got home I jumped it and got it running. I took it down to a heated shop to troubleshoot the glow plug circuit. I discovered it was not getting 12v to the glow plug relay. Also I started it and tried to back it up in the shop, when put in reverse it killed the engine, not lugged it down it was like you shut the switch off.
Also I discovered if you turn the lights on it kills the engine immediately. It will not crank with the lights on either. So far I have replaced the computer,ignition switch,batteries, and cam positioning sensor. Now comes the weird part!! I decided to get it running and pull the bulbs out of the back up lights I pulled the drivers bulb first then the passengers side bulb. When I pulled the passengers side bulb it killed the engine.
It is not my daily driver so it still sits in my shop. I have a hunch it's a ground issue but I've checked and cleaned up all the grounds I can find and it still has the problem.
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So on my way home today I lost all power, the engine shut of and i coasted to side of the road. Went to try and start, nothing. When key is in the crank position the gauges were jumping all over the place, also accompanied by a lot of clicking from behind the dash. Nothing happened when tried to crank. No power to windows or even emergency flashers.
So i get it towed home, and of course it turns over. But this only lasts about ten seconds, then dies. I could do that a few times and then back to no power at all. Even at times with the keys out of ignition it will still click and make a lot of noise.
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My 99 E350 with 7.3 power stroke quickly lost power while on the highway today, bogged down and died. I couldn't get it restarted so had to have it towed home. I tried getting it started at home but it just pumps out white smoke out the exhaust. I got it to fire and run for a minute on a mixture of starting fluid and wd40 but wont stay running. Some background info, I checked oil and it was low but still registered at very tip of dipstick so I topped off oil level and still no start unless I give it a mixture of starting fluid and wd40. Batteries are good and cranking fast. Truck has 355,000 miles but very little blow by and prior to this had plenty of power and didn't have to use the block heater to start it thru the winter even when the temps dropped down to 12 degrees in January.
One thing I did have an issue with this past year was an intermittent cutting out while driving where the engine would instantly shut off but as soon as I tapped accelerator pedal it would start running again like nothing happened, wouldn't even last two seconds and it was running again just like shutting off the key and turning it back on and when it would do that the "Wait to start" light would come on and gauges would drop like key was off but again it all went back normal as soon as I hit a bump or tapped the accelerator pedal and it never lasted more than a second or two and never had to pull over, just tap the pedal or hit a bump and engine would kick in and run fine so not sure if that's related to whats going on now or not.
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My coolant bottle, as well as my entire engine compartment, is full of oil. The truck won't run. It will make ICP when I first crank it but then it goes away. I have the orings and gaskets to do the oil cooler, it is there any chance there's something else that caused this? Anyway to diagnose the oil cooler before I disassemble?
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I have a 2001 F350 7.3 the truck will at random times loose power and almost shut down. A while back I had an issue with the uvch plugs and changed that out. Truck ran fine till I got some dirty fuel from a diesel tank at my friends farm. I did the hutch mod cleaned the tank and now have a frame mounted screw on filter before the pump. I cleaned the fuel bowl and changed the filter. Fuel pressure stays at 59psi and drops to 56psi wot. The truck is tuned with an edge programmer. After these mods the truck ran awesome for over 2000 miles. Now it has the above stated problem. I have fuel and hpop guages along with egt and boost. During the problem egts will increase rapidly and it seems like it is starving for fuel.
Hpop gauge reads 3300psi or above during wot and shows good pressure during these mishaps. I have auto Enginuity and I get a different reading at wot of only 2600 psi. The hpop gauge is tapped into the icp sensor per instructions and has been installed this way for a while with no issues. The tune has been on the truck for over 40000 miles. The only thing that I can come up with is it will occasionally throw a p1211 under wot or pulling my Gooseneck Dump Trailer when loaded. However it acts up sometimes and doesn't throw the code. Sometimes you can shut it off and start it back up and it's fine other times it will last for the whole day. My only guess is low pressure from the hpop but I don't reflect this from my gauge only on AE at wot. Wouldn't a bad pump act up all the time? Am I correct to think it is just the ipr?
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I have a 99 F 250 7.3. It runs fine at idle even for a long time. When I drive around the block a couple of times it will start chugging and lose power and shut off. I have been mixing fryer oil with the diesel. I changed the fuel filter, oil change, crank sensor and fuel pump. I added 15 gallons of diesel and diesel treatment. Pulled fuel filter and bowel is full I'm not sure where to look next.
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My truck occasionally gets a hot no start issue and it's been happening more frequently. Mostly it happens if I drive it up to operating temp turn it off for a short time, then try to start up again. Usually, if I wait 15min to an hour it will start up. It has died on me while driving too, then I have to wait and periodically try it. I've noticed in this situation that if my glow plugs turn on for only a short time, it won't start. But once the motor has cooled enough that the glow plugs stay on for the longer duration, then it will start right up.
I've replaced the CPS, rebuilt the IPR, did the ICP unplug test, rebuilt the injectors, replaced the fuel filter.
HPOP oil level is good, changed the oil maybe 500mi ago. When it's a no start, the low oil pressure gauge does start to read after some cranking, also the tach does read. It throws no DTCs. My reader isn't able to monitor live sensor data.
There is some oil in the valley, but I can't find the source. I think it's probably the turbo pedestal. What else should I check?
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Ok after rebuilding trans and being down a couple of weeks, I went on my 1st run since completing. Noticed when I started truck this morning it didn't turn over as fast as it was. 30 miles down the road Airbag Light comes on, and then volt meter dropped to 8 volts. Got stopped with truck still idling checked everything I had the tools to do so for. Decided to get back to my shop where I had tools, and 5 more miles and 55 mph truck just shuts off. Lost all power, truck would only click. Put my booster box on battery and gauges went back to normal but still wouldn't turn over but maybe once? Only place within a mile of my location was Walmart. Bought 2 new group 65 batteries, installed them and Shazam cranked right up no more problems. Short of the story bad batteries that checked Good with a load tester don't mean squat!
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Truck is an early 1999 F250 Super Duty ext cab long bed, ZF6 swap. 164k miles on the dash, has the newer injectors and hpop from what I was told. It does have a 6 position switch, I typically keep it at the daily 70 horse gain tune. I do not beat the truck often. I don't tow often either.
Truck always took a few seconds longer to start than other 7.3s I have seen. So two days in row, after 8 hours of sitting in the sun, my truck did not wanna start right. Took about 5 minutes of cranking both days to get it to start. Then today on my way to work in the morning I started truck let it idle, everything seemed fine, Started driving and the engine just didn't sound right, but I figured maybe it was still a little cold. Continued driving, and it stalled out ( zf6) , I tried pop starting it but that only got me another block or two, after 10 minutes of cranking I got it to start up made it a half mile it shut off, same thing started and got it home. It cranked longer than normal but started at home after it I turned it off.
At work now so I have yet to check anything. Replacing CPS after work No smoke out of tailpipe, It is getting fuel, I checked the filter. I am no master mechanic, I do basic maintenance like oil changes, brakes, filters and censors my self. Anything more intensive I have not done. If it is not the CPS what else could it be, and how would I go about checking?
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E99 zf6 180k. Ts 6 position and 6637. Just found d out the oil was 25000 miles old and changed it. 400 mile trip followed by a few days in town with no problems. Shut it off warm and it won't refire. Takes 3 loooong cranks. Few minutes later it restarts hard but not as hard. Head out for a few hundred mile trip and it's running fine except all of a sudden "bucks" a few times within a couple hour window. I took data during the trip and never saw anything strange. Today a cold start, around town driving, and warm restart were all normal.
My thoughts are to
1. Verify steady fuel pressure (I only have a temporary gauge setup)
2. Check the fuel filter for oil.
3. Pull the valve covers to look for injector oil leaks.
#3, though, I dunno if it's worth it. Perdels look fine and icp seems to be about the same as it always has.
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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??
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I have a 2000 f250 7.3 with about 230,000 miles on it. So I filled my truck up to go out of town got on my way drove about 50 miles and the next stop I made the truck shut off and would not start again. I figured CPS went out again! nope changed it still not start. So check the fuel pump seemed fine was getting diesel. Checked oil, was a little low so i topped it off nothing. So i left the truck over night and came back on sunday still nothing. I finally got it started with a shot of quick start i know its not good but i had to get this Truck home. I drove and made it almost home took my foot off the pedal and it stalled again so i pulled it home. Had a guy go over and scan it and it says the oil pressure is at 30 psi when cranking so he says the hpop is probably bad.
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I am a new and very happy 7.3 owner. i have lurking around these forums and decided I didn't want to be a creeper anymore. So onto the fun stuff.
Yesterday my wife was exiting a freeway and the Ex shut off while exiting. once she came to a complete stop she tried turning it on and it would start then immediately shut off. she was able to turn it on and it would run then shut off as she drove across the intersection. once she made it across a good samaritan offered to park it for her. She noticed a little bit of black smoke but she told me that the guy was revving it to keep it running.
Luckily there was family at the mall and she waited for the flat bed to arrive. it sat for about 2 hours and they tried starting it and it would start then die. no more black smoke though. we had it towed to a diesel repair shop and they went to start it today and alas it started right up. they let it idle for 30 minutes and it was good. they test drove it and all good. they ran the codes and got the following:
P1876
B1352
B1483
U1147
One thing I did notice a couple of weeks ago, while driving on the freeway cruising about 65, the Ex surged a little and then ran fine. then another time it surged a little while idling. Some more info on the rig. it has a banks six gun tuner and has a cold air intake and exhaust. And it has a Banks Big Head wastegate. I bought the rig 2 months ago and changed all the filters and fluids.
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Shortly after i bought the truck and started driving it home, it shut down on me while coming up a mountain on the interstate. I had probably drove it about 10-15 miles and about 20-30 minutes of running after being dead cold. The temp gauge was about in the middle and it would not start up again until about an hour and a half later, which I was able to drive it home another 20 miles away.
There are no codes, which a mechanic told me it is probably an intermittent problem then. He then told me it would either be the cps, ipr or fuel pump. I have changed the cps and since then have not been able to replicate the problem but I have also not been able to get the engine up to temp because of the recent weather being so cold. I want to test the truck and see if I can get it to stall again but what this could be or what I can do to test the truck?
The truck is a 2003 f250 7.3 4x4 automatic, short bed, crew cab, with 320k miles.
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Have no OD, when you press the OD button nothing happens and then the OD light flashes until she's shut down. On start up no flashing until OD button pressed. All other gears shift lovely. Haven't checked codes yet.
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Parked my truck and headlights wont shut off on there own like normally do after few seconds. That is the only issue with my vsm. Or maybe I have a gem? should i replace it now or wait. Also where to buy one if I need one?
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I've read weeks worth of post to try and fix my late 99.5. First, I'll give syptoms then what has been changed/worked on. While driving at low rpm truck will shut off. As if the key was completely turned off. I am able to throw it in neutral and start back up. Not very safe.
Most the time when I feel the power/electrical loss I can hit the gas pedal fast and most the time "catch it" before it will completely shuts down. Also, I feel a very small "hiccup" at higher speeds. Not often tho.
Changed. Cps. Twice. First aftermarket, second ford.
Changed ICP sensor.
Had dp tuner installed. Right after tuner install abs sensor went out. Like the same day.
I have edge insight for all gauges.
I'm lost.. if these symptoms ring a bell for any of you that would be fantastic. I'm original owner...
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I've developed a problem, usually when starting, that the truck will crank over, start and idle for a few seconds and then shut off. The few seconds it idles it doesn't get any throttle input. I'll crank it back over taking a little more than usual to get it started. When it does start it seems slightly sluggish but that quickly, like almost immediately goes away and the throttle is working again.
Oh, 2001, 7.3 stock w/200k
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