Best LBZ turbo for hauling? - Page 2 - Chevy and GMC Duramax Diesel Forum
06-07 LBZ & LLY Performance Parts Discussion Discussion of Performance Parts For the 06-07.5 LBZ/LLY Duramax Trucks No Advertising

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post #11 of 11 (permalink) Old 09-27-2019, 09:40 PM
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Join Date: Apr 2014
Location: colorado
Posts: 60
I assume you have a cold air intake not this is irrelevant. If you oil the filter too much it goes through the filter and collects on the turbine blades of your turbo throwing it off balance which in turn wears the bearing out. I have seen it lots of times at the shop. I run a dry filter in mine just for that reason. if your hearing noise that means your valve for excessive pressure is not working (if it has one I can't remember) or your turbo is beating itself up hints the oil thing. Hope you figure it out

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