Question about 1999 Cadillac Seville

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The heater only works some times

The heater front fan only works some times changed fan moter and claimant controle what else could make it work only when it wants to??

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Cooling fans are on a thermostat and should only come on when needed. Climate control also only engages the interior fan when it is needed. Not sure if this helps but the question was a little vague, sorry if I missed the mark.

Posted on Jan 16, 2014

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Posted on Jan 02, 2017

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240cpa

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SOURCE: ALL HEATER CONTROLS WORK EXCEPT FRONT DEFROST

Check for a loose or cracked vacuum hose that activates the dampers to move air up to the windshield.

Posted on Jan 12, 2009

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