Crankcase Ventilation System Inspection. Buick GL7 (Export) 2000

For 1990-2009 cars

### Removal Procedure

1. Turn OFF the ignition.
2. Disconnect the vacuum hose (1) from the fuel pressure regulator (3) and positive crankcase ventilation valve (2).
3. Remove the positive crankcase ventilation valve.

### Installation Procedure

1. Install the positive crankcase ventilation valve (2).
2. Connect the vacuum hoses (1) to the fuel pressure regulator (3) and the positive crankcase ventilation valve.