12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

turbo ???

Old Feb 20, 2010 | 03:33 PM
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Default turbo ???

I cant hear my turbo whistle anymore at idle or normal driving, just a little when i get on it. Is my turbo worn out?? If so rebuild or replace??
 
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Old Feb 20, 2010 | 03:49 PM
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have you checked your air filter?
 
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Old Feb 20, 2010 | 04:07 PM
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cleaned it earlier today, K&N stock replacement (8 yrs. old), still can only hear it when I get on it.
 
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Old Feb 20, 2010 | 04:19 PM
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check your intercooler boots and make sure there not leaking
 
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Old Feb 20, 2010 | 04:35 PM
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Ok thanks Ill give them a look
 
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Old Feb 20, 2010 | 04:40 PM
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if thats not it remove the intake and check the play in the compressor wheel. Some up and down is normal but in and out is not.

Also look and make sure the compressor wheel has not hit the cover.
 
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Old Feb 20, 2010 | 05:05 PM
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intercooler boots looked ok. what is the Compressor wheel?
 
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Old Feb 20, 2010 | 05:27 PM
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How many miles? You really need a set of guages. Have you noticed any blac smoke? How about change of performance? If your turbo all of a sudden stops working - you should be able to notice that right away.
 
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Old Feb 20, 2010 | 05:29 PM
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When you take the pipe off.. its the wheel inside the turbine housing that compresses the intake air.
 
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Old Feb 20, 2010 | 05:29 PM
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Originally Posted by Rexy
intercooler boots looked ok.
You just looked at them? Did you check the clamps with a wrench?
 
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