SOURCE: 1999 oldsmobile intrigue
Facing the engine, look to the left on the top. There is a square sensor. Give it a quarter turn, the PCV is under it, pointing straight up.
SOURCE: how to change the pcv valve on an 1999 oldsmobile
Remove plastic "sight shield" / engine cover (two black 13mm nuts on top). PCV valve is plugged into front (left) camshaft cover at the end furthest from pulleys. Check the elbow - if cracked one for Chryslers that Autozone sells in bubblepack will fit - just check the size with the new one.
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