Water Pumps
Timing Belts and Chains

Why would a 1998 Chevy Cavalier 2.2l with a new water pump and thermostat overheat and drain the radiator after being parked if there are no busted hoses?


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2009-05-05 15:03:19
2009-05-05 15:03:19

is it shut off or idleing? You may have a blowed head gasket and water is running into the oil, check the oil. If that is not it than make sure your floor boards arent wet because your heater coil might be leaking. The radiator might be busted and just leaking out ALSO: The thermostat maybe installed backwards! Dont forget to check the radiator drain, people forget Blown head gaskets will show signs in three possible ways, depending upon where the gasket has deteriorated. 1) Blow "white smoke" from the exhaust, Actually steam because the gasket is blown pushing coolant into the combustion chamber. 2) milky, foamy oil. Gasket is allowing coolant into the block outside the combustion chamber 3) Losing coolant as soon as it is added. The gasket is blown where pressure from the combustion chamber is entering a coolant port in the engine block. Chrysler mini vans were famous for this one. Once again, when in doubt, bring it to a mechanic that you feel you can trust, there are good ones out there that get business by just doing a good job. It could be something simple. Good luck There is a head bleeder pipe that goes from where the tophose from the radiator goes. It goes from there to the filler tank you have to take small hose off and see if its gloged The ending is a conical small hole. If when you refill the coolingfluid the cilinderhead will not be correctly filled.

Answer My 99 cavalier 2.2 recently had a leaky radiator water inlet pipe (the big black pipe that runs parallel to your valve cover). Check where it bends and goes into the block (providing your motor is set up this way as I have seen some that are not).


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Water pump, Radiator, thermostat, low coolant, blown head gasket, busted hose. Could be one or all but I would check these first.

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The radiator will leak, Its function is to hold water in a way as to cool it for the engine. So if it leaks, its busted.

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Teh According to BrammerCheck the radiator, make sure it isn't leaking. Also make sure the car's water pump isn't busted. You should also check the radiator cap and cooling fans you can check to see if the fans are working by turning on your air conditioner ( Fans should come on when ac is on)

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Many things such as low coolant, broken belt, busted hose, no oil, bad radiator, fan not working or a faulty thermostat.

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could be a cracked radiator, bad radiator cap, a busted radiator or heater hose, bad heater core, or a busted fill box!

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