Question about 2002 GMC Envoy

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4 wheel drive switch

Easiest way to change switch

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click this link , its step by step instructions , i know the link says 2000 silverado but same job.

Posted on Jan 10, 2009

  • Rick Byrd
    Rick Byrd Jan 10, 2009

    well there are TSBs on that switch , maybe you want to have the dealership replace it under the service campaign , if its defective . can't get much esier than that .



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