1999 Cadillac Catera Q&A

1999 Cadillac Catera Question: overheating

99 cadillac catera overheated and water that come out of resevoir left an oily residue. Blown head gasket? -
Answer 1
very likely. get it leak down test to confirm. Roy -
Comment 1
Is this something I can do or do I have to take it to a mechanic to get it tested. -
Answer 2
Bad coolant/oil heat exchanger. Common problem. -
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