If the oil cooler is leaking oil into the coolant you need replace it not bypass it I would get the Cadillac catera oil cool to replace it they use the same engine in the car.
December, 12, 2012 AT 5:30 PM
Does it provide any lubrication to the top end?
December, 12, 2012 AT 5:39 PM
No it it cools the oil in the engine think of it as a oil filled radiator submerged in coolant. The oil flows thru it and thru its fins and being submerged in coolant cools the oil in the engine.
December, 12, 2012 AT 5:45 PM
Ok thank you I was just trying to avoid pulling the intake to replace the oil cooler, I did bypass it but now it's acting like its starving the top end with oil. I pluged the supply and return lines to the cooler so maybe it's not getting any oil circulation.
December, 12, 2012 AT 6:02 PM
Oh you plugged them not good sounds like thats your problem best to put a new one in. That engine was designed to use that oil cooler you dont want to damage the engine.