PCV SYSTEM

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PCV SYSTEM

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Trailblazer >> PCV SYSTEM

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PCV SYSTEM - 1/13/2008 9:40:06 AM

attibow

Posts: 1
Joined: 1/13/2008
Status: offline

I have a 2002 trailblazer LTZ, and i have a question regarding the pcv sys. The first question does it have one? because I can't find one. My engine was blowing oil all over the enging compartment, draining approximately 3 to 4 quarts of oil before I found it. I was told to check my PCV hose for freezing, which would cause too much pressure, causing oil to blow out. Has anyone heard of this happening?

Post #: 1

RE: PCV SYSTEM - 1/13/2008 12:23:01 PM

RonH

Posts: 414
Joined: 1/31/2007
Status: offline

From the service manual:

Crankcase Ventilation System Description
A closed crankcase ventilation system is used in order to provide a more complete scavenging of crankcase vapors. Fresh air from the throttle body is supplied to the crankcase, mixed with blow-by gases, and then passed through a crankcase ventilation pipe/passage into the intake manifold.
Results of Incorrect Operation
A plugged PCV Pipe/passage way may cause:

Rough idle

Stalling or slow idle speed

Oil leaks

Sludge in engine

(in reply to attibow)

Post #: 2