Question about 2005 GMC Sierra

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2005 GMC air conditioning

2005 GMC Sierra battery went almost dead. Jumped it off and diver side air blows heat while passenger blow cold. Dual Controlled air. I pulled the positive cable for about five minutes and the problem swapped side. Now driver side cold and passenger hot. Any help?

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  • wwwatkin Sep 23, 2008

    drcoolc299... Thanks for the solution...worked like a CHAMP!!!! Local repair shop stated that I would need to bring it in and have a component repalced on the circuit board....probably would have cost around $300.00.... I appreciate the help... once again..Thank You!!!!

  • francis rivero May 11, 2010

    try this solution, start the engine, turn on ac and leave it on then turn off the engine keys to kill the engine then turn it back on with out starting it. leave it as it is.

    take the positive cable from the battery and wait 10 mins, return the cable , turn the ignition key off and then start the car. test your a/c.

    i hope this would work.

    tnx 4 using fixya,

    drcool


  • David A WIley Sep 19, 2013

    I have a 2004 GMC Sierra, the battery was going out and I changed it, I had never had a problem with my ac, but after the battery change it would only blow hot air. I tried what you suggested and my ac is good to go again. Thanks for sharing

  • Anonymous Mar 13, 2014

    not getting heat or cold blower not going on 2005 gmc pickup

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Hello wwwatkin,

i stated my post in the clarification post and you can not rate my solution and since rating is just as important to us as answering your questions, can you please rate me in this post?.

thank you in advance and i really would appreciate it if you rate me a fixya.

again, thank you,

drcool299

Posted on Sep 23, 2008

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  • Master
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You need to have the actuators reset you can try unhooking battery again if not it will have to be done by the dealer

Posted on Sep 22, 2008

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