Question about 1999 Pontiac Grand Am GT

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Oil and antifreeze mixture

My 1999 pontiac Grand Am was making a knocking sound from one of the pistons. Then I noticed oil and antifreeze mixture on the oil stick. Can someone let me know if I blown the engine of the head. It will start if I put water or antifreeze in it but the water runs out and it stalls.

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  • Frank
    Frank May 11, 2010

    YA, you blown the motor. The motor need to be rebuild, if you lucky, the piston may be still in good sharp. but other things need to be done ASAP. otherwise you have to get a new or rebuild motor.

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  • 410 Answers

Don't try to start the car anymore!  You have blown your head gasket.  Take the car to a mechanic and have them check the engine out to make sure you haven't done any further damage to the piston.  If not, have them replace the head gasket and you should be good.  Hopefully it's just the head gasket and you don't need to rebuild the motor.  Hope this helps.  Thanks for an honest rating and for using FixYa.

Posted on May 20, 2009

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1 Answer

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2 Answers

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ASE Master Tech with L1 and X1 certs. Chrysler Level 3 Silver Tech and Nissan Scope Technician- over 12 years experience.

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