Engine Overheating Found the thermostat stuck closed

2001 CHEVROLET CAVALIER
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LOUIE4ME
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  • 1 POST
2 months ago the car overheat. Found the thermostat stuck closed. Car has been running fine since. Change oil, Spark plugs and wires, air filter. Started to drive car out of town. Temp was fine at 40 mph, at 75 mph would heat up to about 210. Brought car back to garage and leaked anti freeze. Found lower radiator hose with small hole in it. Replaced hose and water pump and thermostat. Car is still overheating no just when in the driveway. When they change 1st thermostat the used regular anti freeze. What could be causing to overheat? It acts like it is not circulating the coolant
Nov 9, 2010 at 11:19 AM
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LEGITIMATE007
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are you saying the vehicle is overheating, just according to the gauge on the dash? that may just be a false reading, of course we cant assume, back to your question, a couple of things that may cause overheating of the coolant, can be incorrect dilution of the coolant, you must use fifty/fifty, a bad radiator cap, will cause extra heating, a semi clogged radiator. is another, what Iam thinking may be a possibility as to why the gauge is reading high, is the engine coolant temperature sensor, if that is faulty it will give erratic and false readings. also you will need to make sure that your radiator fan isnt bad. check to see if it comes on, one way to check if it is working, is to hardwire it directly to the battery.
any more questions feel free..
jody
Jul 8, 2021 at 11:07 AM
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