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International Automotive Technicians Network
Re: P0300
Posted to Technical Discussion Forum on 7/14/2009 7 Replies

We pulled the head on this one and the #4 AFM exhaust lifter is the culprit. It also took out the cam lobe.

AFM Lifter Next to Standard Hyd Roller [2007 Chevrolet Tahoe, Engine/Propulsion photo]

Bad Lifter [2007 Chevrolet Tahoe, Engine/Propulsion photo]

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