Engine is running hot but heater is blowing cold

Asked by GuruCDVCB Feb 02, 2019 at 10:34 PM about the 1999 Pontiac Grand Am 4 Dr GT Sedan

Question type: Maintenance & Repair

1999 Pontiac grand am engine is running hot and
heater is blowing cold

Wallace134 answered 5 years ago

Shut the engine off. When it cools down (20-30min later)check your coolant levels. If your low/out of coolant you will not have heat.engine runs hot..If your Thermostat is sticking you won’t have heat and engine runs hot.. also maybe water pump.Are you leaking any coolant.?

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Krazeecarguy answered 5 years ago

check coolant level in reserve tank, if full, could be a bad thermostat OR a plugged heater core.

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