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The Best And Worst Years For The General Motors Vortec 5.3 Engine
In addition, the positive crankcase ventilation system (PCV) featured a faulty valve cover design ... citing Gen IV 5.3 Vortec engines. Not only could the burned engine oil foul spark plugs ...
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Everything To Know About Chevrolet's 4.3L V6 Engine
timing cover, oil pump, and valvetrain components. The 4.3L V6 motor was the first to be called a Vortec engine. At this time, Chevy was developing its vortex technology, a proprietary method of ...