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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1 Answer

I have a 2003 Monte Carlo with a 4300 v6 motor and I need to know if I can put a 3800 v6 in it


Can you?? Sure. Should you? Probably not. The two engines have different ECUs and aren't compatible without a lot of sensor corrections. By the time you get everything correct, you would most likely be dollars ahead to do an identical swap.

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Where is the pcv located on 2004 MOnte Carlo


on the driver side of the super charger there is a metal plate with 2 bolts holding it onto the super charger near the EGR valve. It is under that plate.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Jan 26, 2011 | 2004 Chevrolet Monte Carlo

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Diagram where PCV valve is located on 2003 Chevy Monte Carlo (SS)


It's number 12 on the picture. Located under the MAP sensor.
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Sep 24, 2010 | 2004 Chevrolet Monte Carlo

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Problem with cold start up 1995 monte carlo v6 3.4


Two items to look at: Throttle position sensor, $45-50. PCV valve, $4-5. Either will, at times, produce problems with idling.

Nov 22, 2008 | 1995 Chevrolet Monte Carlo

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