Quote:
Originally Posted by thephantom1492
My check list would be:
- coolant level in expension tank
- After driving for a bit, check the engine temperature. If the gauge say it's cold, and the engine temperature about match what the gauge say, I'ld assume that the gauge work fine
- Does the cooling fan turn on when cold? (beware of the A/C setting, which may be on at recirculation (max) and defroster, so might want to turn off the heat/blower. If it turn on, it might be the issue, investigate why it turn on when cold.
- Radiator hose, Are they matching the engine temperature?
- Thermostat might be faulty. They are normally designed to fail open.
Personally, I'ld suspect the thermostat. Else you have a multiple failure (temp gauge/sensor AND the heat selector thing (I'm unsure if it's a valve or a blend/mix door actuator (motor) that control the cold/heat on that car)
Water pump would cause engine overheating in no time, so the gauge would be quite high.
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had coolant fixed a few months ago, had a leak (loose bolt) and they topped it off and flushed it, both radiator hoses are warm but not hot, about 80 degrees it feels like. The engine is too hot to touch, with my hand a few inches from it I can feel the heat, I am almost certain it is the thermostat, been bad weather here so i haven't had a chance to go out and get one yet.
Could anyone supply me with a simple diagram or explination of where it is on a Pontiac?