Running hot - 2001 Chevrolet Cavalier

there is only one hot wire
in the accessories position there will be a hot wire
in the run position there will be another hot wire
in the start position there will be another hot wire
accessories runs the radio fans, cig lighter etc
the run position runs coil and all accessories
start runs coil and starter motor /relay

I would start by checking the fluid to make sure it's at the proper level, Then check to see if the thermostat is opening like it should. If you have good flow and you get heat inside the car but the car still overheats I think I'd be checking for blown head gaskets and head warp.

May be its low on coolant or radiator hoses clogged or its thermostat issue,its remaining closed or it can be issue with coolant leaking from somewhere.Or cooling fan not running when when engine gets warm.
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There are many other possibilities causing these issues.:----
To troubleshoot the issue yourself,i provide you few very helpful links with solutions:-----
Click the link below:----

Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot?

http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html

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1991 Toyota Trecel: Engine Starts fine but dies when gets Warm?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

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Multiple problems on car: Car runs hot, A/C blows hot and car starts surging?
http://schematicsdiagram.blogspot.in/2012/04/multiple-problems-on-car-car-runs-hotac.html


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There are many possibilities for car overheating.

Faulty thermostat clogged radiator/plugged radiator, radiator hose worn out. Coolant running low. Low coolant pressure. Faulty temperate sensor.

I suggest you to go through the troubleshooting details mentioned in the link below:-----

All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html

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These will help.

Thanks.

Sounds like you might have a fan problem. Check and make sure the fans are functioning properly.

For car running hot problem,i suggest you to click this link below and follow the troubleshooting procedure:-----http://technoanswers.blogspot.in/2012/02/car-running-hot.html
-----------Thanks.

Please check that the electric cooling fan operates when the engine gets up to temperature. Quite a common fault.

DID YOU CHANGE THE THERMOSTAT IN THE WATER PUMP HOUSING.FOLLOW TOP RADIATOR HOSE TO IT.

Is it actually running hot or is the thermostat gauge showing it is running hot? The reason I ask is because after spending money on a thermostat, fan clutch, and almost a radiator because I thought mine was running hot, I found out it was my sensor.

Is it just reading hot on the gauges or is running hot from under the hood.

Radiator Fan Control Relay Switch. I bet your electric fan doesn't run?