2005 4 wheel drive button blinks and will shift on own , but wont respond to pushing button

Asked by Aug 25, 2011 at 10:46 PM about the 2005 GMC Sierra 1500HD 4 Dr SLE 4WD Crew Cab SB HD

Question type: Maintenance & Repair

1 Answer

switch may be bad,acuator may be bad also,all of it works off vacume.

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