Question about 2003 Oldsmobile Aurora

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Pcv Where is the PCV on my 2003 olds aurora 4.0

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I too have an '03 Aurora 4.0 and searched everywhere trying to find the PCV. There don't appear to be any on the '03 or '02 4.0L. After searching the GM OEM parts site I found PCVs listed only for the '01 4.0L and none for '02 - '03 4.0. However, they do list them for the 3.5L '01 - '02. Hope this helps.

Posted on Oct 13, 2008

  • ed500 Oct 17, 2008

    Sorry about the limited information suggested by the available parts, but I continued to research your question. I found that the '03 4.0 has a PCV system which consists of both dirty and fresh air tubes. Hood the open, remove the fuel injection inspection cover, and while facing the engine from the front you'll find the fresh air PCV line running from the inner right side of the front camshaft cover to the throttle body. The dirty air PCV tube is located on the inner left side of the rear camshaft cover. It goes from the rear camshaft cover into the left side of the intake manifold. From looking at my car, all PCVs appear to be sealed with RTV to their respective components but the rubber lines can easily be removed. I hope this helps.

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http://www.focushacks.com/images/pcv.jpg
Here's a picture to locate it..
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