PCV SYSTEM
 

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?

RE: PCV SYSTEM
 

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 [/ul]