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2004 Buick Century Question: Engine cooling fan

 

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jdmmmm, South Portland, ME, September 15, 2009, 07:29
 Rookie

My engine cooling fan doesn't come on until the heat gauge gets to 5/8 ths. It also shuts off once it drops back to 1/2. In the past it would always stay below the half way mark
Thanks
John

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  • Answer #1

    Wilsonite September 15, 2009, 08:12
     Journeyman

    IIRC, that car uses a multi-stage cooling fan setup with one fan coming on at a certain temp, and the other will be sequenced at a higher temp. You may want to check and see if both fans are running when the temp goes up to 5/8, or just one fan.

    areas to check, continuity of the fans themselves, fan relays, coolant temp senders.

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