2002 hyundai elantra : The heat works while the car is in motion, but when at a stoplight/sign, it blows cool air. What could be wrong?

Asked by Nov 17, 2016 at 01:27 PM about the 2002 Hyundai Elantra GLS

Question type: Maintenance & Repair

1 Answer

40,455

Does the car idle really low or does it run really cool ( gauge needle at the bottom)? Maybe you need a new thermostat.

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