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Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

93 6.5l Turbo Problems

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Old May 15, 2013 | 09:02 PM
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Freeman51b's Avatar
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Default 93 6.5l Turbo Problems
when the turbo starts working there is a "wooooooooooooing" noise in the cab. Anyone know the Problem.
 
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Old May 15, 2013 | 09:40 PM
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Check the downpipe for touching the cab or frame-engine mounts that get soft over time change the original clearances.
 
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Old May 15, 2013 | 10:00 PM
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It did it with the stock downpipe and now i have 3 inch flex and it still does it.
 
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Old May 15, 2013 | 10:15 PM
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What type of air filter are you using and does it rest on the inner fender or is it mounted solidly?
 
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Old May 15, 2013 | 10:23 PM
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it has a stp air filter and its the stock air intake but its turned upward.
 
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Old May 15, 2013 | 10:38 PM
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Why turn it upward?
You will be sucking hot air rather than cooler outside air from the fender.

Also just trying to figure out if the noise is a vibration or what?
 
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Old May 15, 2013 | 10:40 PM
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There are no inner fenders right now and the noise only happens when you really hammerdown on it or it is topping out.
 
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Old May 16, 2013 | 01:57 PM
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At a loss sorry without hearing the noise for myself.
 
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Old May 16, 2013 | 11:09 PM
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Can you post a YT vid?
 
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Old May 27, 2013 | 10:21 PM
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Intake hose loose?
 
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