Having problems with your 2001 Pontiac Grand Prix ?
Musty Smell when A/C is turned on in Pontiac Grand Prix
If your vehicle is equipped with a cabin air filter replace it. And to prevent the smell from coming back shut the ac off but leave the blower motor on to dry up the evaporator. Not allowing to dry will result in mold growth
Repair Help & Product Troubleshooting for 2001 Pontiac Grand Prix
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