Having problems with your 2002 Pontiac Montana ?
Have a 2002 Montana and the transmission was shifting rough. We have the fluid flushed and changed this morning figuring it was the cheapest place to start. Its still shifting rough. What is the next step I should take to isolate the trouble with it, change the solenoid ?
Your tcm may be bad,does your engine light come when it shifts rough?
Repair Help & Product Troubleshooting for 2002 Pontiac Montana
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.