Log In
Search suggestions

    My Vehicles

    2003 Oldsmobile Truck Silhouette 2WD 3.4L SFI 6cyl

    My Store

    1720 S RIDGEWOOD A
    (386) 427-1210

    CLOSED Open at 7:30 AM

    SAVE 20% + GET A $20 GIFT CARD ON ONLINE SHIP-TO-HOME ORDERS OVER $100.

    Use Code: BLKFRIDAY

    See Details

    Cooling Fan Switch

    Cooling Fan Switch Operation:

    The cooling fan switch on electric fans monitors coolant temperature signals from the engine control computer. When the engine is cool, the switch opens to keep the fan from spinning. When engine is warm, the switch closes to turn fan on for cooling.

    How To Instructions:

    Inspect - Check for obvious problems.
    Test - Give it an in-depth diagnosis.
    Replace - Out with the old, in with the new.

    Automotive Glossary
    Check out one of the largest dictionaries of automotive terms
    on the internet.

    AutoZone Logo