Why is there oil in my radiator? 1996 buick park avenue

Asked by Dec 16, 2012 at 02:00 AM about the 1996 Buick Park Avenue 4 Dr STD Sedan

Question type: Maintenance & Repair

4 Answers

101,335

A little bit could be OK. If it's a lot of oil, take it to a repair shop for a engine compression and a coolant system test.

35

I agree with tenspeed. A couple possible causes of this are a blown cylinder head gasket or a crack in the cyinder head.

35,215

Its not an overhead cam so the only place oil would be pressurised near coolant is either in the radiator or the engine block itself. A head gasket or head being cracked would be coolant in the oil.

35,215

If a pressure test is done on the cooling system then the oil cooler lines need to be removed from the radiator to prevent oil contamination.

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