heater works only on high randomly

Asked by Feb 12, 2016 at 05:01 PM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

changed ignition switch replaced heater resistor still heater control works on high randomly .also rear defroster button an a\c work randomly

3 Answers

your switch that turns them on might be bad

them cars are known for the cluster to go bad that control heat and ac

145

Could possibly be the regulator. :(

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