99 engine break down! Help - Ford Powerstroke Diesel Forum
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Old 09-27-2011, 11:43 AM
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Exclamation 99 engine break down! Help

I have a 1999 f350 crew cab 4x4 dually I use for work. In the past it ran pretty good. But lately it has been acting up. It stutters or seems like it is missing at times. The engine will briefly shutter at stop lights but quickly recover. Today I was driving down the road I was at a stop light when I proceeded through the light the truck began to shutter horribly. I kept trucking to the next road (1/8th of a mile) In doing so the truck died while driving and the battery light turned on. I pulled off and parked it. I tried to restart it but failed. Truck would crank but would not start. I let the truck rest for a good 2-5 minutes then it started up. It ran bad and I limped it home. Its now in my driveway I'm planning on taking it into ford later. I was wondering what your guys thoughts are. The truck seems to run worse in cold or wet conditions (electrical?). Could it be the High Pressure Oil Regulator? High Pressure Oil Pump? Fuel Pump? Faulty Injector? or the computer? No check engine light or anything either. These are the first things that come to mind. I just started it up again to see what it would do and it seems to be running fine but I am still taking it in. Look Forward to your guys feed back.
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Old 09-27-2011, 02:09 PM
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Quote:
Originally Posted by scagmanf350 View Post
I have a 1999 f350 crew cab 4x4 dually I use for work. In the past it ran pretty good. But lately it has been acting up. It stutters or seems like it is missing at times. The engine will briefly shutter at stop lights but quickly recover. Today I was driving down the road I was at a stop light when I proceeded through the light the truck began to shutter horribly. I kept trucking to the next road (1/8th of a mile) In doing so the truck died while driving and the battery light turned on. I pulled off and parked it. I tried to restart it but failed. Truck would crank but would not start. I let the truck rest for a good 2-5 minutes then it started up. It ran bad and I limped it home. Its now in my driveway I'm planning on taking it into ford later. I was wondering what your guys thoughts are. The truck seems to run worse in cold or wet conditions (electrical?). Could it be the High Pressure Oil Regulator? High Pressure Oil Pump? Fuel Pump? Faulty Injector? or the computer? No check engine light or anything either. These are the first things that come to mind. I just started it up again to see what it would do and it seems to be running fine but I am still taking it in. Look Forward to your guys feed back.
What mods are done on the truck? Any lights come on? CEL? Whens the last time the oil or fuel filter was changed?

Sounds like either a HPO problem or a UVCH issue, but I could be wrong. Try unplugging the ICP, check for oil on the plug/wires and see if it clears up with it unplugged.

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Old 09-27-2011, 04:58 PM
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bump!!!! Need more suggestions Please!
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Old 09-27-2011, 04:59 PM
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Impossible to diagnose over the phone. I sure wouldn't be taking it to Ford. Instead order the AE software from ITP and do your own testing and go from there.
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Old 09-27-2011, 04:59 PM
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No mods what so ever. No lights or any indicators. What is the uvch?
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Old 09-27-2011, 05:01 PM
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I need this truck running its for my business. If I had the software already I would thats the only reason I sent it in.
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Old 09-28-2011, 04:21 AM
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What about the cps? I don't think it's ever been replaced I could be wrong though.
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Old 09-28-2011, 02:05 PM
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Ford called me this afternoon they have determined that the number 8 cylinder is not firing. They don't know why yet but they said they would know tomorrow. Any ideas as to what it could be?
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Old 10-02-2011, 08:11 AM
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UVC Harness is the " under valve cover" harness. It controls your glow plugs and injectors. The #8 injector coming up dead is common and by them saying this tells me they don't have a good diesel tech there. The dealership is only as good as their techs, some good and some really, really bad. I understand needing the truck for work but at what cost? The harness on each side connects to the main harness on each side of the engine valley. Pull the connections apart and look for burnt or loose fittings. Make sure they go back together tight. Ford now has shims to keep this connection from comming loose. I don't get back here that often, you can always PM me if you need more help.
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Old 10-02-2011, 08:35 AM
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Quote:
Originally Posted by NCHornet View Post
UVC Harness is the " under valve cover" harness. It controls your glow plugs and injectors. The #8 injector coming up dead is common and by them saying this tells me they don't have a good diesel tech there. The dealership is only as good as their techs, some good and some really, really bad. I understand needing the truck for work but at what cost? The harness on each side connects to the main harness on each side of the engine valley. Pull the connections apart and look for burnt or loose fittings. Make sure they go back together tight. Ford now has shims to keep this connection from comming loose. I don't get back here that often, you can always PM me if you need more help.
Can also do the $.50 mod.

50 cent mod - Ford Truck Enthusiasts Forums
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