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whistle under highboost

1071 Views 7 Replies 6 Participants Last post by  1stgen3rdgendodge
I bought my 01 24v a few months back Im a trucker so I havent put more then a few hundred miles on her. Under high boost I hear a whistle (not turbo whistle) almost sounds like a constant door ajar warning buzzer. It sounds like its coming from the driver side ac vent. I don;t see any damage to any off the intake boots or intercooler. It dosent really sound like a boost leak either any ideas???
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Check for a boost leak. I swore I had a leak under the dash and it turned out to be a leaking intake gasket where the factory fuel filter used to reside. Search for "boost leak" or "leak test" and you'll find a lot of info. Good luck!
 

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I'm short on time right now, but use the 'search' button and you'll find tons of info here.
 

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any suggestions on how to look for a boost leak
Ive got the same annoying whistle, let me know if you find it. I havent had time to build a pressure test to look for it. Short version is unhook from the turbo outlet and from the intake side. Block one off and make a plug with a valve stem on it so you can pressurize the thing and listen for leaks.

soapy water always comes in handy for finding them as well.
 

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intake gasket near or behind the lift pump. check all of the bolts on the intake.
 

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you running a boost gauge? if so check the tube that hooks to the back of the gauge. i had a noise like that and it ended up being the tube. it popped off :lol4:
 
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