my 2003 corolla boggs out with heater fan turned on also rear defrost

Asked by Nov 14, 2016 at 09:41 AM about the 2003 Toyota Corolla

Question type: Maintenance & Repair

1 Answer

60,515

I doubt the heater fan could impact the way the engine runs. The only connection I can think of is the load that is put on the alternator. If your engine is running poorly then any additional load might be a problem. Does your engine have really high miles or does it need a tuneup?

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