I bought a used chev cavalier and I notice that only cold air comes out of the heater vents instead of hot. I thought It might be the thermostat or perhapse the heater coil..the thing DOES push out air at proper low med. and high settings. so my question is if it is the thermostat....Where is it located so I may switch it out if it might be the problem,same Q if its the heater coil..........ALSO I notice that the engine temprature guage doesn't seem to go above 100 dagrees. the previous owner said" it works and does go higher if you let it sit awhile ".but I drove about 40 miles to a town and it never got above 100(lowest temp on the guage)it has been minus to single degrees in temp outside...is that normal?
Hello;
EVen with the temps as they have been you should be able to get to "operating temperature". Yes the thermostat is probably stuck open. Follow the top radiator hose to the water neck on the engine. There you will find 2 bolts holding the water neck in place. With the engine off and cold, release the radiator cap slowly. Then take the two bolts out. Remove the hose out of the way and there you will find a poppet thermostst. Pull it up and replace it with the new one. ( I always test my new ones in a pot of boiling water to ensure they work properly) Clean the mating surfaces, andf reinstall in the reverse order.
Hope this helps you and rate me highly please.
Thanks;
Rich
RPM Northwest
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