Question about 2000 GMC New Sierra 1500

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4x4 in working

I have a 2000 GMC Sierra that will not go in four wheel drive. My dash shows that it should be in four wheel drive, but it is not. I can hear it shift into four wheel drive at the Transfer case. I dont know what is wrong.

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  • baseball29m Apr 20, 2009

    i have the same problem. I push the button and it sounds like it engages but it doesnt. I have tried putting it in gear but it still wont. I dont know if it is the actuator or the sensor.

  • Anonymous Mar 13, 2014

    four wheel drive shifts in and out on it's own

  • Anonymous Mar 15, 2014

    transfer case noise

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Try reversing six to eight feet after shifting into 4WD. PLEASE RATE MY ANSWER.

Posted on Feb 26, 2009

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I had the same problem with my 91 GMC. Turned out to be the actuator that engages the front differential. $70.00 part at Advance Auto Parts fixed it.

Posted on Mar 20, 2009

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