Vacuum Modulator Replacement. Opel Sintra 1997

For 1990-2009 cars

### Removal Procedure

1. Remove the vacuum modulator and wiring harness shield.
2. Remove the vacuum line at the modulator.
3. Remove the attaching bolt (30) and the clamp (31) at the modulator base.
4. Remove the vacuum modulator (32). Use care to avoid losing the modulator valve (34) from the transaxle case.
5. Remove the O-ring (33).

### Installation Procedure

1. If removed, install the modulator valve (34).
2. Install the new O-ring (33).
3. Install the vacuum modulator (32).
4. Install the clamp (31).
5. Install the attaching bolt (30).

Tighten
Tighten the attaching bolt to 27 N·m (20 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Install the vacuum line at the modulator.
7. Install the vacuum modulator and wiring harness shield.
8. Install the vacuum modulator and wiring harness shield nut.

Tighten
Tighten the vacuum modulator and wiring harness shield nut to 17 N·m (13 lb ft).