The PCV valve on a 1994 Regal Custom should be located on top of the valve cover. It is a plug in type and is easily changed.
Freon valve on my 1989 Buick Regal Custom 3.1 V-6 located on driver side under the area of battery tray. Hope this helps!
The PCV valve for a 1999 Regal 3.8 is located on the top of the valve cover. The valve pulls out to replace it.
On a 1993 Buick Regal 3.1L, the PCV valve is located on the intake manifold. It is situated underneath the MAP sensor.
Where is the heater control valve on a 1994 Buick Regal
Front (belt side), top of motor. it is covered by a plate with 3 bolts holding it on. Careful, it is spring loaded.
The PCV valve for a 2001 Buick LeSabre is located in the top of one of the valve covers. It is a plug in unit and is easily changed.
the pcv should be near the front valve cover
At the top of the engine near the firewall and directly behind the carburetor.
How to fix heater in Buick there is cool air ,fan is work .but no warm air
located on vale cover
it is on the throttle body. usually held in by two screws.