• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

new member from lake isabella, CA

G

gjohnson0560

New member
Hi everyone I have had my 99 grand prix for 5 years. It has been a good car but I have some issues. recently I had to replace my intake manifold because it had coolant in it. Has this happened to anyone else. My service engine light has been on for weeks now and i don't know why. I also lost use of my stereo when it was not running for awhile. I was told by pontiac that I would need to bring it to them to get it unlocked and it would cost me $45.00 does anyone know the unlock code
 


Welcome.

The lower intake manifold gaskets are a known issue. For the radio you might want to search on here for that info.
 
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