by rew on November 25th, 2008

rew

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Why does my 4 wheel drive only work some times 00' blazer LS, the light blinks when you push the auto button the it goes back to 2 wheel drive.

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Answers. 3 helpful answers below.

  • by leslyechris on October 10th, 2009

    leslyechris

    do both of what the other guys said. if that doesn't do it then you could have a bad sensor, a loose vacume line, loose wire or bad conection. hopefully no problems in the transfercase or differentials. also check driveshafts if bad u-joints i have known that to cause this kind of problem too (rare though)

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  • by Jim on October 10th, 2009

    Jim

    Disconnect the battery for a few moments to reset the chip that controls things. It worked for me.

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  • by Ralph on December 1st, 2008

    Ralph

    Check the fluids in both your transfer case & differential units

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