Vacuum Brake Booster: Service and Repair

Brake Booster

Brake Booster:

Removal and Installation

All vehicles
1. Remove the brake master cylinder.
2. Remove the powertrain control module (PCM). For additional information, refer to Computers and Control Systems.
3. Remove the battery tray. For additional information, refer to Battery.





4. Remove the bolt and disconnect the PCM ground.





5. Disconnect the brake tube clip, the 3 nuts and remove the PCM bracket.

6. CAUTION: Make sure that the aspirator tube is routed correctly and that the clamps are positioned so they do not make contact with surrounding components.

Disconnect the vacuum hose/check valve assembly from the brake booster.

Automatic transmission vehicles

7. NOTE: It is not necessary to remove the fluid level indicator tube from the transmission. The tube can be positioned aside with only the bolt removed.

Remove the transmission fluid level indicator tube bolt and position the tube aside.
^ To install, tighten to 8 Nm (71 inch lbs.).

All vehicles

8. Remove the brake booster push rod pin and clip and disconnect the push rod from the brake pedal.
9. Remove the 4 nuts and the brake booster.
^ To install, tighten to 23 Nm (17 ft. lbs.).

10. CAUTION: Prior to installation, make sure that the distance between the booster mating surface to the push rod centerpoint is as shown.





To install, reverse the removal procedure.
^ Check for correct booster push rod distance and adjust as necessary.
- Tighten booster push rod jam nut to 17 Nm (13 ft. lbs.).