Rick's Free Auto Repair Advice

Posts Tagged: overheating Cavalier

Overheating problems Cavalier

My Cavalier Overheats Owners of GM 2.4 engines may encounter overheating problems that drive them crazy. If you’ve checked the thermostat, water pump, and radiator and still can’t find the cause, pressure clean the heater core. That’s right, the heater core. This engine setup uses returning coolant from the heater core to open the thermostat. If the heater core is pluggled, the thermostat won’t open and you wind up with an overheating problem. GM wants the heat to get to the heater core first. If the heater core is plugged, … Read More


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