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

Asked by dhight40 Dec 16, 2012 at 02:00 AM about the 1996 Buick Park Avenue FWD

Question type: Maintenance & Repair

4 Answers
177,705

tenspeed answered 12 years ago

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.

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95

Statguy answered 12 years ago

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

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69,945

John answered 12 years ago

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.

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69,945

John answered 12 years ago

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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