Question about 2002 Chevrolet Malibu

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2002 checy malibu

Heater blow works but blows cold air

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  • cmelmer Jan 26, 2009

    I replaced my thermostat and yes it was likely sticking, very dirty. However, the same problem exists... grrrrrr!

  • Anonymous Feb 18, 2009

    I had the same problem with my 99 Cadillac Seville. The heater core needed to be flushed. Mine was dirty. After flush heat worked fine. This can not be done with just a cooling system flush. The heater core hoses have to be disconnected and then flush the heater core.

    I hope this helps. If not your heater core is most likely bad.

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Normally this is caused by either a thermostat sticking not allowing the hot water from the engine to pass to the heater matrix.

Posted on Jan 23, 2009

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