my service 4 wheel drive light came on so i had it checked out at the dealer. it doesn't come on all of the time. when it was on they said i had a broken encoder motor and needed to replace it. the same thing happened on my 1999 gmc sierra at about the same mileage. i replaced it then. this time i wonder if it isnt a regularly timed event. any suggestions?
Oct 14, 2008 at 1:12 PM






