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Re: 2002 Chevy P/U 5.3L System lean both banks
Posted to Technical Discussion Forum on 12/28/2004 5 Replies

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Bryan,

Pull the PCV out of the valve cover, plug the PCV inlet hose and start the engine. If you have an intake gasket leak, it should start building vacuum in the crankcase when you place your thum... Login to read more.

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