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International Automotive Technicians Network
Re: 2013 Ecotec loud cracking noise from cam area
Posted to Technical Discussion Forum on 3/23/2021

be sure cam pulley bolts are tight. we had a toyota 3.5l that the cam pulley bolts were not tight enough after we put a belt and water pump on. We could not get rear cam pulley off so we were able to do with out removing back timing cover completely. We did no... Login to read more.