Question about 1999 GMC Jimmy

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Trouble starting Had a radiator leak. Fixed with temperary x factor sand. Then water pump started leaking. Drove Jimmy with water pump leak for several weeks. Replaced water pump. Now car runs real rough, sometimes not starting without jump. Wants to cut off when just iddling. What kind of damage have I done.

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Sounds like the head gaskets are leaking.

Posted on Nov 09, 2008

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Posted on Jan 02, 2017

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I have a 91 Jimmy, I have a coolant leak and can't


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I would have your head gaskets checked for leaks into cooling system and if ok try changing your water pump.

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