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Not sure if it is the same for Custom as for Limited, but remove the dust cover , on top of the engine top left, there is a small round cover with 3 wires attached to it. Unplug wires, push down on plastic cover turning counterclockwise 1/4 turn and pull up. PCV Valve is uderneath. Remove O-ring from old valve and replace on new one, install the Valve, and replace cover by pushing in and turning clockwise 1/4 turn. Replace wires, and dust cover. AK-Rabbitt

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โˆ™ 2008-02-23 23:03:01
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Q: Where is the PCV valve located on a 1996 Buick LeSabre Limited?
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