PCV SYSTEM (Full Version)

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PCV SYSTEM

  

attibow -> PCV SYSTEM (1/13/2008 9:40:06 AM)

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?

  
RonH -> RE: PCV SYSTEM (1/13/2008 12:23:01 PM)

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

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