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Where is the PCV valve on a 1996 Buick Park AV?

1. Locate the air cleaner housing on the top of the engine. It is a black plastic cover that is held in place by several bolts.

2. Remove the air cleaner housing by unscrewing the bolts and lifting it off the engine.

3. Locate the PCV valve on the back of the engine, near the top. It is a small, round, black valve with a hose connected to it.

4. Disconnect the hose from the PCV valve by pulling it off.

5. Unscrew the PCV valve by turning it counterclockwise.

6. Inspect the PCV valve for damage or wear. If it is damaged or worn, replace it.

7. Screw in the new PCV valve by turning it clockwise until it is snug.

8. Reattach the hose to the PCV valve.

9. Replace the air cleaner housing and secure it with the bolts.