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International Automotive Technicians Network
Re: 2005 g3500 high idle
Posted to Technical Discussion Forum on 1/26/2008

Hey this is jake again i am just closing out our repair. Lance Mossman called us and gave us a great tip. The wiring harness at the iac motor connector had two broken wires at it. you could not see any physical evidence of chafing but if you give the wires a l... Login to read more.