Blowing Air?? Stuck Valve?? - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 02-11-2011, 08:51 PM Thread Starter
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Blowing Air?? Stuck Valve??

I just started to get this strange blowing air sound when holding steady RPM when I give it a little fuel it all of a sudden shuts off then comes back seems to stop after running awhile.
Any thoughts appreciated
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post #2 of 11 Old 02-11-2011, 08:54 PM
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check your cac (charge air cooler) hoses probably a loose clamp
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post #3 of 11 Old 02-11-2011, 09:01 PM Thread Starter
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Would that be on the rear passanger side?
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post #4 of 11 Old 02-11-2011, 09:06 PM
spool up that turbo!!


 
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if it does it when its cold its your exhaust back pressure valve


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post #5 of 11 Old 02-11-2011, 09:09 PM Thread Starter
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I should add 99 F350-sorry---But I'm thinking valve too its a real snappy shut-off then as the Rpm drops it opens again.
Where do I find this beast and is it a repair something that can be attempted by a novice ?
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post #6 of 11 Old 02-11-2011, 09:11 PM
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there are 2 pipes one on each side of the engine going towards radiator i believe most call these intercooler pipes but any way check the hoses at both ends of each pipe( 4 hoses total) and check the clamps or see if they have popped off!
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post #7 of 11 Old 02-11-2011, 09:14 PM
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oh by the way if you dont notice a horsepower loss then i'll go with hollister25073
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post #8 of 11 Old 02-11-2011, 09:21 PM
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Definately sounds like EBPV. If it only does it when its cold and shuts off as soon as you hit the throttle then its workig properly. But if it feels like its coming on under load and holding you back then you can uplug it.

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post #9 of 11 Old 02-11-2011, 10:07 PM Thread Starter
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Quote:
Originally Posted by dieseldik View Post
oh by the way if you dont notice a horsepower loss then i'll go with hollister25073
No horsepower loss --- just this loud annoying hissing sound.
Any idea if this is an easy fix?
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post #10 of 11 Old 02-13-2011, 08:17 PM Thread Starter
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Today I think I found the exhaust back pressure valve
has a small pipe vent coming from the assembly
Probably got a bunch of crap splashed up in there.
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