Having problems with your 2003 Pontiac Montana ?
2003 Pontiac Montana overheating Temperature is fine while on the highway. Overheats in town. The guage went into the red and then went all the way down to normal. Is this the thermostat, sensor or engine problem
Hi maybe you have a temp sensor problem or need do you check the fan is working could be electric problem
Sounds like a head gasket blown. I'm sorry, this is a common problem with these vans.
Repair Help & Product Troubleshooting for 2003 Pontiac Montana
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