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PCV system [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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John Skiba
06-08-2006, 11:07 PM
The TBSS is finally home. :)

Looking over the engine, I noticed that GM went with the pcv back to the rear valve cover on the drivers side and to the top of the manifold. They just capped the engine valley cover location. Someone tell me my eyes were just deceiving me today.

Why the heck did they go back to this type of setup? Anyone know? The old LS1's would suck in oil something fierce with this type of setup. I didn't look enough but I didn't notice a nipple behind the throttle body on the intake manifold where it would normally connect to. Did they just do if out of simple location convenience at the top?

Well, here mod #1, reroute and try to keep the oil out of the intake... LOLs

John

Liquiddi
06-09-2006, 11:46 AM
or a catch can would work correct? I put one on my 2000 corvette and it works great.