too much grey smoke
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too much grey smoke
i recently purchased a 95 f250 powerstroke. today when i was driving down the road it started smoking like crazy and i was hardly even accelerating. it put out more smoke at 2000 rpm's than it does when the chip is turned on and i floor it. also there was a loud clicking noise that sounded like it was coming from the turbo. the exhaust temperatures were around 800-1000 when it is usually about 400-600. when i shifted into nuetral, the engine accelerated and i didnt even touch the pedal. if anyone has any idea whats going on i would appreciate the help.
FTE Leadership Emeritus
Joined: May 2001
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From: Cabot, Arkansas
Almost sounds like a runaway. Never heard of that happening with a PSD. I suppose if it popped a turbo seal and started pumping oil into the intake??????
What's it doing now? Did it drive home after the incident?
What's it doing now? Did it drive home after the incident?
Posting Guru
Joined: Aug 2004
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From: Braham MN
Sounds like a fuel delivery problem, the injectors will get pretty clackit when they are not getting enough fuel, the PCM widens out the PW and timing and the high EGT was from fuel burning in the manifold near the probe.
check your fuel pressure, if you can get a gauge that is readable at speed, that is Ideal as the pressure will drop off ALOT with a load VS idleing in the drive.
On edit, reread your post, I didnt see that it accelerated on its own..... possibly an exploded O-ring on an injector, causing the gray haze, and the extra noise. what does it do now, does it just accelerate maddly or does it just certain times???
Diesel Rod
check your fuel pressure, if you can get a gauge that is readable at speed, that is Ideal as the pressure will drop off ALOT with a load VS idleing in the drive.
On edit, reread your post, I didnt see that it accelerated on its own..... possibly an exploded O-ring on an injector, causing the gray haze, and the extra noise. what does it do now, does it just accelerate maddly or does it just certain times???
Diesel Rod
Last edited by 444dieselrod; May 22, 2006 at 11:20 PM.
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i made it home and had a friend of mine come over and look at it. we could smell diesel on the dipstick. it had extremely bad cylinder wash so we drained the oil and got 26 quarts out. as you probably know these trucks only hold 16 quarts of oil so at least 10 quarts was diesel. i changed the oil and know i am rerouting the the crank case to flow out underneath the truck instead of blowing into the intake. i am hoping that that will keep it from ever running away again. also i am installing a new fuel pump. that was all day today and i found a small hole in the copper fuel line. we welded that up (if anyone knows where to find a new one besides a dealership i would appreciate it). also if anyone has any hints on removing the turbo i would appreciate it. the fuel pump is located in the engine valley so it would make everything much easier with the turbo off but removing it is a real pain. thanks for the help.
Last edited by 84 Diesel; May 28, 2006 at 12:34 AM.
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Joined: Aug 2004
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From: SHELTON, WA
turbo doesnt need to come off unless you got a cali truck. 1 1/4 combo wrench is needed.
what copper line are you talking about?
you can repair the hard fuel lines by cutting out the bad section and fixing with diesel rated rubber line. go to napa for that.
i forget how the diesel gets in the oil but i think there is only one way. "injector orings" be patient someone will know for sure.
unless if the fuel pump can blow it out the bottom by the tappet. which is more likely. because the diesel 40-70 psi cant overcome the high press oil. pretty sure thats right.
what copper line are you talking about?
you can repair the hard fuel lines by cutting out the bad section and fixing with diesel rated rubber line. go to napa for that.
i forget how the diesel gets in the oil but i think there is only one way. "injector orings" be patient someone will know for sure.
unless if the fuel pump can blow it out the bottom by the tappet. which is more likely. because the diesel 40-70 psi cant overcome the high press oil. pretty sure thats right.
Last edited by 1997F-350; May 28, 2006 at 01:38 AM.
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i got new lines just to be safe. turns out that theyre still extremely difficult to connect to the pump and the fuel lines. probably tomorrow were gonaa pull the turbo for two reasons. first off it will make this job easier and i will hopefully finish and second (heres a new topic) the turbo seems like the bearings might be a little worn. the turbo's fan will move in and out about 1/16 of an inch. im assuming that this is not typical but if it is i would like to know. if i do have turbo problems ive thought of three options and would like to know the pro's and con's of each solution.
1. rebuild old turbo
2. new turbo off of a truck from the same year
3. (this one i gor from a friend) turbo from a newer psd van. i hear that this might require more parts though such as an intercooler and might be more work than necesary. also that with this diferent turbo it would probably be quicker and blow less smoke.
1. rebuild old turbo
2. new turbo off of a truck from the same year
3. (this one i gor from a friend) turbo from a newer psd van. i hear that this might require more parts though such as an intercooler and might be more work than necesary. also that with this diferent turbo it would probably be quicker and blow less smoke.
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Jakeman711
1987 - 1996 F150 & Larger F-Series Trucks
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Oct 17, 2006 11:07 PM
