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Re: 2008 chevy 6.6 mass air flow
Posted to HD/Fleet Forum on 3/11/2021 1 Reply

We used to have 08 & 09's that the air box bottom would rub thru on the A/C compressor metal line elbows and let dirty air in. And then they would rub a hole thru the rubber elbow off the filter housing after the MAF on the firewall pinch weld causing a derate... Login to read more.

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