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International Automotive Technicians Network
Re: GM 3.5 l 5 cylinder engine
Posted to Technical Discussion Forum on 1/25/2019

G'day Dean, is there a positive or negative pressure in the cranks case, if positive the PCV system is either defective or can't keep up with the blow by but that doesn't necessarily mean the engine will be a smoker.

Problems with PCV oil separation/baffling... Login to read more.