fastazzls1

Hey guys can you tell me where the air pump check valves are located, can't find my manual to save my life. Also how much are the check valves and are they easy to replace. Thanks.

5.3LJimmy

iTrader: (10)

Those are built into the metal tubes that come off the top front of the exhaust manifolds on each side of the engine. Kind of hard to miss.

I'm not sure how much they cost but there are probably thousands of sets laying in peoples garages. It's one of the first things I permanently deleted from my car.

What makes you think they need to be replaced?

blue09rocket

Mine need replaced too, I just recently threw a P1416 code, passenger side air check valve, might as well replace the drivers side while Im at it.