Question about 2002 Pontiac Bonneville

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Where is the radiator drain plug on a 2002 pontiac bonneville

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It should be located on the bottom of the radiator by the bottom radiator hose, if not there chk. other side of the radiator at the bottom its just a plastic button that you screw out, but it does not come all the way out.

Posted on Sep 30, 2009

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  • Charles Zimmerman
    Charles Zimmerman Sep 09, 2013

    Anyone REALLY know where the drain plug is. Already went through the hassle of remloving the guard, and there aint nothing there for a drain plug.

  • Tena Taylor Marshall
    Tena Taylor Marshall Jan 20, 2014

    The plastic with two prongs on the outside end CAN BE removed (just don't throw the plug with the engine coolant) ha The drain is on the driver side far right of the radiator. Lift the radiator flap to see where the hoses go. I did have to remove the bottom motor shroud behind the bumper, (Needed under there anyway)

  • Tena Taylor Marshall
    Tena Taylor Marshall Jan 20, 2014

    old okie chick

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