Chevrolet Colorado & GMC Canyon Forum banner

4wd shifts on its own

  1. I4/I5 Engine & Drivetrain
    I'm a long time lurker of the forum so I'm likely posting this in the wrong place, but I digress. I had been having weird 4wd issues pretty much since I got the truck. Issue # 1: Truck will shift into 4hi successfully, but no 4lo. Light just blinks for a while until it gives up on it. Tried...