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International Automotive Technicians Network
Re: FLS Vacuum Chev Avalanche
Posted to Technical Discussion Forum on 1/23/2014

Hey Shannon !!! I believe it was a vin 3 engine code, which i believe has active fuel management. Your firing order is correct from what i know and used to determine that cylinder one intake draw wasn't low enough as well. I'm not sure how to post the picture ... Login to read more.