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-   -   Vacuum pump problems? (https://www.dieselbombers.com/chevy-gmc-6-2l-6-5l/70991-vacuum-pump-problems.html)

wpg6.5 02-23-2011 09:46 AM

Vacuum pump problems?
 
So im not sure if im right but im probably gonna remove it anyways today, this morning i started my truck and when i came out i noticed it was making a very light knocking sound coming from the turbo side of the engine, it sounds like its coming from the accessory section and im wondering if when a vacuum pumo goes if it sounds like that. sound cant really be heard from the cab so i doubt its engine, oil pressure and all is fine. only other thought is exhuast leak. any insite would be appretiated.

Crazy 02-23-2011 05:15 PM

one way fine out if it coming from the accessory to remove belt start the engine see if gone away

wpg6.5 02-23-2011 06:32 PM

ya i pulled the pump and its all good lol dont need that anyways


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