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2000 GMC Yukon Question: If i push my 4 wheel drive button it won't change. It stays in 2 high. Why?

 

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stonetribe6, Palmyra, PA, March 25, 2012, 19:57
 Rookie

The lights on the button selector are lit but when I push 4 high or low it stays in 2 high. Any ideas what to check? thanks

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    Miles Auto Services (884 Answers) , Richmond, VA - (804) 885-4176
    milesauto March 26, 2012, 05:32
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     Master

    Cannot be nothing other than a guess in this forum. Recommend you get it to a good honest technician on that one. Here are some the things that are possibly causing problem. Not a extremly tought diagnosis for many techs.

    Axle Actuator Ground
    Front Axle Actuator Power
    Front Axle Actuator Wiring
    Front Differential
    Transfer Case Control Module (TCCM)
    Transfer Case Control Module (TCCM) Connector

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