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International Automotive Technicians Network
Re: '03 GMC Yukon A/C mode issue
Posted to Technical Discussion Forum on 6/25/2008

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Hi do you have any codes? Have you calibrated the actuators? Also there is a bulletin for wires chaffed on a bracket behind the glove box Causing your concern. Tsb 04-01-38-008. Also you may get more... Login to read more.