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Old 01-15-2006, 01:27 PM
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Strange noise in O/D while boosting

Im getting this almost like chirping noise aroung 12 psi and up in overdrive. Sounds like its from the turbo but not sure. I dont think it compressor surge. It has been doing it alot and it gets annoying, also more noticable when im towing. Help appreciated


Matt
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Old 01-18-2006, 09:27 AM
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Question Boost noise

Sounds like a leak in the air charge system. A little hole in one of the connectors most likely.
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Old 10-28-2006, 12:51 PM
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I believe my truck is doing the same thing. I dont think its turbo surge though. When Im accelerating and the tranny gets into 3rd or 4th, the turbo repeatedly makes the exact same sound as the coughback u get when u build up a considerable amount of boost and then let out all of a sudden. Its very similar to a BOV in a turboed car.
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Old 10-28-2006, 01:27 PM
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I've heard similar on some of our firetrucks when there was a leak on the pressure side of the turbo plumbing. Sometimes when fittings aren't tight enough or have been pulled to where it leaks a little when at higher boost it makes a squealing/chirping sound as the air is being forced through a tiny spot. Sort of like letting the air out of a balloon slowly.
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Old 03-06-2007, 05:44 PM
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I have the same problem with my truck under hard acceleration and when i am pulling my horse trailer. is this a boost leak or something else, and how can i fix this issue.
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Old 03-26-2007, 08:22 PM
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Mine was compressor surge, the wicked wheel got rid of 90% of it.





Matt
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Old 03-26-2007, 08:33 PM
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Quote:
Originally Posted by payne5757 View Post
I believe my truck is doing the same thing. I dont think its turbo surge though. When Im accelerating and the tranny gets into 3rd or 4th, the turbo repeatedly makes the exact same sound as the coughback u get when u build up a considerable amount of boost and then let out all of a sudden. Its very similar to a BOV in a turboed car.
Hate to tell you this but that is surge.
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