PCV valve location for 2005 Buick LeSabre - 2005 Buick LeSabre

this link will show location and replacement proceedure How to replace PCV valve on GM 3 8L 6

Hose going into valve cover from intake area

on the valve cover gasket it has a small skinny hose coming from it your oil fill hole is on one side and the pcv is on the other side

Should be on one of the valve covers, it will have a hose running to the valve cover with the PCV valve seated into the cover.

Remove the sight shield from the fuel rail. (it's the large plastic shield that dresses up the engine) As you stand in front of the car the alternator is located on rear left side. In front of it is an electrical connector to the MAP sensor. Remove it. Press the PCV valve cover down and rotate it 1/4 turn counterclockwise. It is actully on the intake manifold. Lift the cover, the upper O-ring and the spring from the housing. Remove the pcv valve and the lower O-ring from the intake manifold.

PCV . Positive Crankcase Ventalation Valves are always located in the valve cover pans with a hose attached usually leading to the air cleaner, or some other vacuum source..

The pcv valve is in the upper intake manifold on the passenger side. Be sure to put the o-ring on the new one or it will set a code.

Open hood, top left side between the valve covers. There is a "funky" plastic housing that turns counter-clockwise (less than 1 inch of travel). then pull straight up to reveal the "missing" pcv valve.

On the passenger side of the upper plenum you will find the map sensor clipped into a cap that rotates off. The pcv valve is under this cap and is spring loaded, they come apart and go back together kinda hard. Let me know if I can help you further.

The PCV valve is part of the front valve cover and in order to replace it you have to replace the valve cover.

The MAF sensor is in the air filter housing. The connector is on the top of the housing.