: Engine overheat and oil in coolant - 2001 STS

08-04-14, 01:04 PM
I have a 2001 STS. My engine is overheating. I put a new radiator water pump and thermostat. I'm now noticing black oil in my antifreeze but the engine oil is clean. What do you think this is?

Moderator note: Post/thread moved from incorrectly reported thread in an Admin forum.

08-04-14, 03:45 PM

Normally I would say the radiator side tank is leaking, but you said you replaced the radiator. Might be time for a block test.

08-05-14, 10:44 AM
^ That