99 grand prix runs great but has water in the oil and valve chattering

10

Asked by Jan 17, 2015 at 03:48 AM about the 1999 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

It acts like I gets weak when it warms up but still runs smoothly

2 Answers

78,375

You can ruin an engine running it too long with water in the oil if you haven't already. Not good, possible blown head gaskets or cracked heads, my advise is to have it towed to a shop you trust and get it checked.

345

Agreed, Blown head gasket.

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