Cold Weather PCV System frozen? - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 5.3L V8 Engine and Drivetrain > OEM Issues

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Old 01-31-2019, 08:34 PM
princej99 princej99 is offline
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2008 GMC Envoy SLE
Bordeaux Red Metallic 4.2L I6 4X4
Join Date: Jan 2018
Location: ont
Posts: 533
Cold Weather PCV System frozen?

stuck in a deep freeze last few weeks, anyone have issues with the pcv system freezing and engine oil blow out?

please post in this thread.

I found a possible TSB that suggest to chnage the oil filler cap to a vented one( Model 12589430).

as you can see it affects alot more models than just the TB/Envoy.

cant hurt , at least for the winter.
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