What does a faulty PCV valve cause?

A clogged hose or PCV system or inoperative valve can increase oil consumption because pressure builds when the vapors in the crankcase aren't allowed to flow into the combustion chambers. That additional pressure can force oil past seals and gaskets. via

Does a 2007 Silverado have a PCV valve?

The PCV valve on the V6 engine in your 2007 Chevrolet Silverado should be located in the left (drivers) side valve cover - a hose will be attached which runs to the intake manifold. via

Where is the PCV valve on a 2009 GMC Sierra?

Its on the very rear of the drivers side valve cover. via

Where is the PCV valve on a 2007 Chevy Avalanche?

It's at the back of the drivers side valve cover. via

Where is the PCV valve on a 2004 GMC Yukon? (video)

https://www.youtube.com/watch?v=Tdf0bbVZdv0

Does a 2007 GMC Sierra have a cabin air filter?

Our research indicates that your vehicle does not have a cabin air filter (also known as a pollen or AC filter). Vehicles without cabin air filters typically have a plastic mesh that prevents leaves and other foreign objects from entering the HVAC system. via

How do you change the cabin air filter on a 2007 GMC Sierra?

Cabin air filter on GMC Sierra Series is located inside the car on the passenger side, under the glove box. Under glove compartment remove screws from kick plate and remove the kick plate. Here you can be able to locate cabin air filter housing cover like in picture bellow. via

Is PCV hose same as vacuum hose?

The fuel hose is designed for internal pressure. It will collapse under the vacuum of the PCV system. PCV hose is designed specifically so it won't collapse. So insist on PCV hose, never fuel hose or vacuum hose. via

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