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2001 GMC Sierra 2500 HD Question: AC temp control on passenger side does not work



jim121, Kerrville, TX, August 01, 2011, 18:23

passenger side air is hot no matter where control is set.

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  • Answer #1

    August 02, 2011, 11:20

    You may have a failed temperature door actuator for the passenger side of your 2001 GMC Sierra. Fault codes stored in the AC control module would help to confirm this. You will need a scan tool to access these fault codes.

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