Oil Filter Adapter and Bypass Valve Assembly Replacement. Buick GL7 (Export) 2000

For 1990-2009 cars

### Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the oil filter. Refer to Engine Oil and Oil Filter Replacement .
3. Remove oil filter bypass hole plug.
4. Insert a flat-bladed tool into the oil filter bypass hole and force the bypass valve (1) out.
5. Remove the oil filter bypass valve.
6. If necessary, remove the oil filter fitting.

### Installation Procedure

1. If removed, install the oil filter fitting.

Tighten
Tighten the oil filter fitting to 39 N·m (29 lb ft).

2. Install the oil filter bypass valve.
3. Install the oil filter bypass valve (1) to the proper depth.
4. Install oil filter bypass hole plug.

Tighten
Tighten the oil filter bypass hole plug to 19 N·m (14 lb ft).

5. Install the oil filter. Refer to Engine Oil and Oil Filter Replacement .
6. Lower the vehicle.
7. Add engine oil as necessary. Refer to Engine Oil and Oil Filter Replacement .