1999 buick park avenue oil in antifreeze-how??

Asked by Guru9CLXH Jun 25, 2017 at 12:44 PM about the 1999 Buick Park Avenue Ultra FWD

Question type: Maintenance & Repair

oil in the antifreeze-no white smoke no poor running

2 Answers

F_O_R answered 7 years ago

Possible head gasket leak or a leaking transmission cooler into the radiator.

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txbarney answered 7 years ago

Check the transmission fluid lever....also look for signs of water in the transmission. Since the transmission fluid pressure is usually higher than the coolant pressure, the transmission fluid get into the radiator. If you feel that is what is happening and you don't want to replace the radiator, add an auxillary transmission cooler and by-pass the radiator.

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