Having problems with your 2000 Pontiac Bonneville ?
2000 bonneville heater core ploblem - 2000 Pontiac Bonneville
My heater quit working at one time on my 2000 bville and it turned out to be a sticky water valve under the dash. I pulled off the panels under the dash and tapped the vavle with a hammer and haven't had problems since..... Good luck!
Repair Help & Product Troubleshooting for 2000 Pontiac Bonneville
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