03 Pontiac Grand Prix 3.8 Coolant system problem

Asked by Danhough Jun 17, 2018 at 08:20 PM about the 2003 Pontiac Grand Prix

Question type: Maintenance & Repair

Coolant coming out exhaust. Sputtering bad .. Oil
is fine (no sign of coolant)

4 Answers
55

oneStan answered 6 years ago

Head gasket is leaking into the cylinder but not into the oil. No so unusual. You can save money now by parking it until repaired. Good luck!

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55

oneStan answered 6 years ago

It could be a number of things but more than likely just one of the gaskets. If you haven't driven it while it was overheating it shouldn't be warped, just needing new gaskets and a good clean-up.

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Danhough answered 6 years ago

Need more help!. I put in a new motor (same) and trans(malibu,I believe ,which I was told was compatible) the trans has a dif shifter box on top(2 wire harness spots)(original has 1) I tried just switching the box to fit my 1 wire harness! The wheels are still spinning free! What are my options

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