Having problems with your 1998 Pontiac Grand Prix ?
Fan blower started running full speed, even after car turned off. And A/C does not work. Removing fuse (30A A/C?) stops the blower. Blower now runs normally, with fan speed switch able to adjust blower speed, but of course A/C doesn't work now.
THE FAN BLOWER RELAY IN STUCK CLOSE POSITION.YOU HAVE TO REPLACE FAN BLOWER RELAY.
Repair Help & Product Troubleshooting for 1998 Pontiac Grand Prix
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.