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To change the PCV valve on a 2006 Buick Lacrosse with a 3800 Series III engine, first, locate the PCV valve, which is typically found on the valve cover. Remove the hose connected to the valve and unscrew or pull out the old PCV valve. Install the new PCV valve by inserting it into the valve cover and reconnecting the hose. Finally, ensure everything is secure and check for any leaks before starting the engine.

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2mo ago

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