what makes a car overheat only when you put it in gear and drive it?heatercore is fine.I have changed the radiator cap and thermostat.no water in tailpipe or oil
Keywords:Cavilier
what makes a car overheat only when you put it in gear and drive it?heatercore is fine.I have changed the radiator cap and thermostat.no water in tailpipe or oil
Most likely there is a coolant leak. Pressure test the system and confirm any leaks and repair as needed. If there are no leaks, then the most likely reason would be the radiator fan is not working properly.
Overheating Diagnostics
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