Question about 1999 Pontiac Sunfire

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Pontiac 99 Sunfire... leaking heavy coolant on passenger side, I can see the leak coming off the bottom part of the car but don't know where it is originating. The whole underside of the car is moist and sticky...what could the problem be?

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Most likely the hose to the water pump or the pump itself. The pump will leak when it is bad. Follow your radiator hose from the radiator to the pump, check for cracks or holes and make sure it is tight. If the hose is good it is probably the pump.

Posted on Apr 01, 2011

  • Dcramer531
    Dcramer531 Apr 01, 2011

    Also check the hoses that go through the forewall for the heater,

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Spray clean engine and check for leak - it could be a hose, waterpump or head gasket.

Posted on Apr 01, 2011

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