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Re: radiator fan not turning on 02 intrepid
Maybe the sensor that turns on the fans might of gone bad . . and turning on the ac when engine is gettin hot is not going to help instead turn on the heater to reduce the heat , also overheating causes hoses and gaskets to get soft and get destroyed
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You can try several things. The radiator fan is controlled by a thermal switch and in some cases the A/C maximum air setting. Do you know if the fan is turning on? Some have 2 speeds. The thermostat is a low cost guess.
The engine idle can be affected by overheating. Also turn off the A/C and see if that makes a difference in idle or overheating.
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Better make sure the fan works. There is a switch on the radiator that turns the fan on when it gets to a certain temperature. It could be the fan or the switch. Your thermostat is not your cap, it's in a different location. (Usually at the engine end of the upper radiator hose) Get the leak check! A good garage can pressure test the system to see what leaks you might have.
Assuming that you are speaking of the radiator fans, they don't normally come on until the engine warms up. If the car was not overheating before the A/C belt belt was replaced, then the fans were working. Start the engine and feel the radiator where the upper engine radiator hose fits. When the thermostat opens, the radiator will suddenly get hot. The fans should come on shortly after that. Check the temperature sensor near where the upper hose comes off of the engine--there should be a wire attached to it. Does the temp gauge move normally?
I just had my coolant flushed and my radiator cooling fan replaced. The car was slightly overheating and would "gargle" in the coolant bowl after I turned the engine off. It turned out to be the radiator was clogged up on one side.
I went full tilt and replaced the radiator, water pump, thermostat, radiator cap and timing belt. I have 85,000 miles on the car and it was about time to do these things anyway. It is running like a new car now.