Having problems with your 1999 Pontiac Grand Am GT ?
1999 pontiac grand am gt is overheating i replaced the thermostat, waterpump, and the upper hose gave it a full flushing and still leaking antifreeze and now it started to overheat on me. at first it would just tell me i was low on coolant so i would fill it. but i was doing that twice a week. then i found that the upper radiator hose had a crack replaced that. still low coolant light would come on. so replaced the thermostat and the waterpump. but b4 all this it never overheated now it's overhe
First check that the thermostat was installed correctly. It will not work properly if it was installed upside down. If this is the original radiator, it most likely is plugged up with deposits and corrosion. It needs to be replaced with a new one.
Repair Help & Product Troubleshooting for 1999 Pontiac Grand Am GT
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