Grand Prix V6-191 3.1L VIN M SFI (1998)
Shift Modulator: Service and Repair
Vacuum Modulator Replacement
REMOVAL PROCEDURE
1. Disconnect the vacuum line at the vacuum modulator.
2. Remove the attaching bolt (30) and the clamp (31) at the modulator base.
3. Remove the vacuum modulator (32). Use care to avoid losing the modulator valve (34) from the transaxle case.
4. 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).
