Well it seems the shaft seal is bad and you can't get just the seal. GM must of got it from some where but I can't get one. I have checked numerous parts houses and implement dealers. It has a AC DELCO number but it comes with the ID to large. They want to sell me the whole pump for $245...
Yep I looked again and now the oil isn't black. It is yellowish in color. I can also see a little of oil on the inside of the hood from the oil flying off the pulley. How many bolts are holding the pump?
I have a 2011 duramax and it has develop an oil leak on the drivers side of the engine. I found drips hanging off what I believe is the engine oil cooler. Am I correct? If so is there O-rings that I can replace and how much of a job is it?? See example photo. Red arrow explains where the oil is...