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I have an oil leak from my 2008 Escalade with 175k miles. It's on the driver's side rear of the valve cover. Initially I thought it was from the valve cover gasket but the cover looks wet as well. I attached a picture.
I would say it probably did. I've heard that the pcv is an issue on these and I had planned to replace that valve cover with the revised one that uses less oil.
Isn't the oil pressure sending unit in the middle of the valley of the engine in the rear?
Also a check engine light has come on. I haven't gotten the codes read but it's running fine.
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