Question about 2000 Pontiac Sunfire

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Heater fan blowing intermittently or not at all

When i turn on the defroster or heater and turn the fan on, it blows for a few minutes then quits blowing. Sometimes it blows again while driving then stops again. Hot air comes out while I am driving after the car warms up but it's only while moving - the fan has quit. The fan makes a clicking sound while slowing down before stopping altogether. The fan blows again when a passenger puts his foot under the dash and presses on the motor. Does it need a new fan motor?

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Most likely it does, if you can hit the motor and it will run. I can't say for sure but you might want to chk. to see if you got a heater blower motor resister. There located (if its got one) around the heater motor and it controls blower speeds, might be worth checking out.

Posted on Jan 31, 2009

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SOURCE: heater fan blowing intermittently or not at all

unhook your battery unplug the harness that's touchy get a sharp object that you can pry the connectors together with you will see them wide open crimp then tight enough to get a good tight fit, the amperage draw from the motor has stretched them out and when it gets warn with current passing threw it opens up and loses contact. while it's apart take a emory board and clean the flat spades on the other side so you have a good connection.

Posted on May 30, 2009

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