Sludge and coolant in oil
Pontiac Q&AAsk Your Question
1993 Pontiac Grand Am Question: My car is getting coolant in the oil. Could it be a cracked freeze plug?
Answer #1Superbob February 22, 2011, 20:03Master
No, not a freeze plug. More likely to be a leaking head gasket or intake manifold allowing coolant into the oil. You may want to find a GM specialist. Here's a directory link for you:
Answer #2Visitor, February 22, 2011, 20:04
a cracked head gasket
Answer #3mastertech6371 February 22, 2011, 21:06Master
just to add to bobs answer, we have seen many come in with bad intake gaskets leaking coolant into the oil. you can add dye to the coolant and when it shows up in the oil, the intake can be examined for the leak.