Diff Light

By freakyboxer
September 17, 2005 in Ask A GM Technician

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freakyboxer

Posted September 17, 2005

I have an '01 gmc sierra k1500 with push button 4 wheel drive. My question is when i push the button to go into 4 wheel drive the light will blink to let me no its engaing but it wont stop blinking. The problem is it will engage but it will keep blinking and when i go to the auto 4 wheel drive even on slippery ground it will keep blinking then go back to a solid light on 2 wheel drive. I was wndering what this could be or if anyone has any suggestions before i take the truck in for a servicing.

thanx brent

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