The Diesel Garage banner

Help me with shift issues

403 Views 4 Replies 4 Participants Last post by  sdxaka
My duramax started to not want to shift properly. When i put it in drive its goes first but pops out sometimes then from first to second then stays in second until i go to neutral then back to drive then it goes to fourth and stays in fourth until i turn the truck off. I thought it might be the nsbu switch or a solenoid but im not sure
1 - 1 of 5 Posts
Have you changed the fluid?
It sounds either low or a clogged filter.
1 - 1 of 5 Posts