Question about 2004 Chevrolet Monte Carlo

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Where is the pcv valve for a 2004 Monte Carlo 3800 4.2 L V6

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PCV Valve is in one of the valve covers with a hose connected to it. Pull it straight out of the valve cover and remove it from the hose. Shake it to see if the valve moves back and forth. If not, replace.

Posted on Sep 05, 2010

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Actually, it is located on passenger side of the intake-manifold, within the assembly which contains both the MAP-sensor and the PCV-valve. To get at it, one must first remove the plastic engine-cover, disconnect then remove the MAP-sensor, press in and 1/4 turn the access-cover which the MAP-sensor came out of, then remove the PCV-valve. Even if the valve can move freely, it may be tacky and non-functional under operating conditions. Replacement of the PCV-valve is a prudent course of action, especially given the low cost (under $10) for the part.

Posted on Aug 03, 2013

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