Is my turbo going bad? - Ford Powerstroke Diesel Forum
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Old 02-11-2008, 03:20 PM
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Unhappy Is my turbo going bad?

1997 with 236,000 miles. Has always run great until now. At idle runs good. Bring rpms up to 1800 and then it gets real loud at the stock air intake (very loud) rpms then drop to 1500 as you continue to push accelerator. Then the rpms jump and it sounds normal (loud intake noise gone). This is all when you are not in gear. When you go to accelerate in gear and this happens it feels as if the drive train is binding (struggling) (again with very loud noise at air intake) and this is only for a moment untill you accelerate past it. When you are driving and let off the accelerator (don't hit brakes) and the engine drops to about 1800 rpms its like you have a jake brake (loud at the air intake and you can really feel it slowing down the truck). Does this sound like my turbo is going bad? I have a code reader and no codes are coming up.
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Old 02-11-2008, 03:26 PM
If it aint a CAT itsa DOG

 

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I'm not sure if the 97's had ebpv's on them, but if they do yours could be sticking so that its holding the engine back. I know that my truck is very loud out the intake when the ebpv is one for engine warm up. One of the tech's should be able to tell ya if that year psd had a ebpv.
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Old 02-11-2008, 03:43 PM
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EBPV

Yes it does have a ebpv. Would the cold temps also effect the ebpv. Because it has gotten real cold. 5 F.
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Old 02-11-2008, 03:49 PM
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I had the samething happen with my 96...A temp. fix is just disconnect the ebpv valve you can see it if climb up into the engine compartment and look under the turbo...I did that in the summer when it was happening but then in the winter I ended up having my turbo pedestal rebuilt for engine warm up and it has worked fine ever since.
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Old 02-11-2008, 04:07 PM
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i have the same problem only i had a code saying my exhaust back pressure sensor was malfunctioning so i replaced it and still have the problem. so is the problem in the pedestal?
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Old 02-11-2008, 04:07 PM
If it aint a CAT itsa DOG

 

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It sounds like the ebpv is sticking then. You can also clean the sensor, it should be in the same location as mine is. [IMG][/IMG]Right above the water pump and behind the serp belt.
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Old 02-11-2008, 04:09 PM
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that doesnt fix it, i just bought a new senor from ford which was a waste of $157
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Old 02-11-2008, 04:12 PM
If it aint a CAT itsa DOG

 

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Well i can be the cause. Also cleaning the tube to the sensor can help. Man Ford got ya on that part, sorry that didn't work.
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Old 02-11-2008, 04:14 PM
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check the resistance of the engine oil temp sensor......its the controll for the valve....make sure its working right.....that will also effect glow plug operation and engine operation...along with the EBPV
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Old 02-11-2008, 04:35 PM
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the glow plugs and everything are working fine, its been realllly cold out and i havent had a problem yet. i really wish i knew exactly what the cause of the problem is because my fuel milage has almost cut in half
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