Question about 1998 Oldsmobile Silhouette
The big plastic cover that sits atop of the intake manifold, (it looks like a big ram air induction cover or something similar. On the top, left (pass. side), center end of it, there is a flat topped cap looking thing. Push down and turn it c-clockwise. Remove the cap and the PCV valve is located under the spring. It should come out attached to the spring. Make sure to replace the O-ring that goes around the lower base PCV valve and don't forget to put the O-ring back under the cap when replacing the cap. It takes no more than a couple of minutes to replace once located. I finally found the pcv valve after 3-4 hours of taking things a part. It is located on top of the engine the pass side right in front of the belt, it has a black cap that you have to turn 1/4 \" the cap pops off and a spring is inside the tube, take it out and then the pcv valve comes out next. I found it b/c it said pcv in small letters on the top of the cap. Answer
Posted on May 29, 2009
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Posted on Jan 02, 2017
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