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1997 Buick Park Avenue Question: I have a cyclin creaking noise coming from the heater control area. Can you help

 

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jreiland, 3.8L V6, Tulare, CA, January 16, 2014, 09:26
 Rookie

it cycles on and off in five second intervals, each cycle lasting about ten seconds, whether I have have the unit on or off. Sounds like some thing need to be oiled badly.

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  • Answer #1

    January 16, 2014, 14:19
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     Master

    Most likely a heater blend door, does everything work on the heat/AC?

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