Grand prix blowing cold air

Asked by Antonio Nov 02, 2020 at 08:44 AM about the 2005 Pontiac Grand Prix

Question type: Maintenance & Repair

Had my thermostat and water pumped
replaced, but its still blow cold air and won't
defrost

1 Answer
26,265

taver91 answered 3 years ago

You probably need to have your system purged of air that is preventing the coolant from circulating through you heater box.

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