Sunfire overheating

Asked by GuruNY43D Oct 14, 2019 at 07:22 PM about the 2000 Pontiac Sunfire SE Coupe

Question type: Maintenance & Repair

2.2L sunfire has new water pump and thermostat .
Still overheating

4 Answers
26,835

taver91 answered 5 years ago

Only other things to check are the coolant flow through the radiator, engine block, heater core, and hoses. The radiator cap should also be checked for its pressure relief function.

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4,300

lincolnscott49 answered 5 years ago

As bad or faulty catalytic converter, which can disrupt the normal combustion properties of an engine, can force the engine to work harder in order to emit the burned exhaust gases, or exhaust. This raises the operating temperature of an engine, and if left untreated, can definitely cause a car's engine to overheat.

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