My car started overheating just as soon as the temperatures started hitting near the triple digits.
I've had a problem in the past with: leaking heater core (~1.5 years ago), busted PCM (~7 months ago), bad thermostat (~2 years ago), coolant temperature sensor (~2 years ago).
I boiled my thermostat and it opens just fine. I have yet to test if it overheats with the vents turned to max heat. I tried to idle it to the point of overheating the other day, and the fan kicked on; the A/C even blew cold. However, if I idle after driving for a bit, the fan does not seem to kick on, even with the A/C.
1) How can I diagnose as the water pump?
2) How can I diagnose as the fan and/or fan relays?
3) Is there an easy way to make sure the head gasket is not bad (and letting exhaust fumes leak into the coolant, thus making it much hotter)?
4) My car has two temperature sensors, one for the fan, and one for the gauge. How do I test these?
Any advice is much appreciated. If you need any further information, please ask.
Thanks in advance!
I've had a problem in the past with: leaking heater core (~1.5 years ago), busted PCM (~7 months ago), bad thermostat (~2 years ago), coolant temperature sensor (~2 years ago).
I boiled my thermostat and it opens just fine. I have yet to test if it overheats with the vents turned to max heat. I tried to idle it to the point of overheating the other day, and the fan kicked on; the A/C even blew cold. However, if I idle after driving for a bit, the fan does not seem to kick on, even with the A/C.
1) How can I diagnose as the water pump?
2) How can I diagnose as the fan and/or fan relays?
3) Is there an easy way to make sure the head gasket is not bad (and letting exhaust fumes leak into the coolant, thus making it much hotter)?
4) My car has two temperature sensors, one for the fan, and one for the gauge. How do I test these?
Any advice is much appreciated. If you need any further information, please ask.
Thanks in advance!