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Chris Mosher replied to the thread Engine dies - but why?.Clean the throttle body and MAF then take it on the freeway and do high speed run to clear everything out. -
Chris Mosher replied to the thread 2012 Yukon Denali 6.2. Poor gas mileage, no codes thrown and no check engine light.Smell your oil, does it smell like gas? If so, your engine doesn’t like idling very long. I replaced O2’s, plugs/wires, MAF and PCV’s...
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