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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2005 Tahoe, I am losing oil, but I see no leak nor

Customer Question

I have a 2005 Tahoe, I am losing oil, but I see no leak nor smell anything burning. what's going on?
Submitted: 11 months ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 11 months ago.

Hi there, I am Cam.

This sounds like an issue with the valve cover on the drivers side. These do not use a regular PCV valve, rather its an orifice and a series of baffles under the valve cover. If its loosing oil and no external leaks, then those baffles and the orifice may be a problem. The orifice cannot be changed on its own so I suggest replacing the drivers side valve cover assembly to correct this.