Brake Booster: Removal
- 1.
Relieve the vacuum in the brake booster by pressing and releasing the brake pedal a minimum of 5 times with the engine not running.
- 3.
Remove the ACL outlet pipe. REFER to Intake Air Distribution and Filtering .
- 4.
Remove HCU. REFER to Anti-Lock Brake System (ABS) and Stability Control .
- 5.
Remove the brake master cylinder. REFER to Hydraulic Brake Actuation .
- 7.
Remove the stoplamp switch. REFER to Exterior Lighting .
NOTE:
Do not service the brake pedal or brake booster without first removing the stoplamp switch. This switch must be removed with the brake pedal in the at-rest position. The switch plunger must be compressed for the switch to rotate in the bracket. Attempting to remove the switch when the plunger is extended (during pedal apply) will result in damage to the switch.
- 8.
Remove and discard booster push rod clevis-locking pin.
NOTE:
Remove the clevis-locking pin by squeezing the locking tabs and pulling outward on the opposite end.
NOTE:
The booster push rod clevis-locking pin is a one-time use only part. Any time the booster push rod clevis-locking pin is removed, a new booster push rod clevis-locking pin should be used.