Manual:HUMMER Hummer H3 Base 2010Page:19896 / 37523



Power Brake Booster Pump Fluid Accumulator Replacement (without RPO BRM) — 2010 Hummer H3 Base, Automatic Service Manual

Power Brake Booster Pump Fluid Accumulator Replacement (without RPO BRM)

Fig 1: Power Brake Booster Pump Fluid Accumulator (Without RPO BRM)
GM1646971Courtesy of GENERAL MOTORS CORP.
Callout Component Name
WARNING: Refer to Bleed Procedure Warning .
WARNING: Refer to Brake Fluid Irritant Warning .
CAUTION: Refer to Brake Fluid Effects on Paint and Electrical Components Caution .

Preliminary Procedures

  1. Turn the ignition switch to the OFF position.
  2. Apply and release the brake pedal 20 times to deplete the hydraulic brake booster accumulator reserve.
1 Power Brake Booster Accumulator
CAUTION: Refer to Fastener Caution .

Procedure: 
Discard the accumulator properly by cutting the accumulator in half and draining the brake fluid. Refer to Power Brake Booster Pump Fluid Accumulator Disposal .

Tighten:  55 N.m (41 lb ft)
2 Power Brake Booster Pump Fluid Accumulator Seal
Procedure: 
Lubricate the seal with GM approved DOT-3 brake fluid from a clean, sealed brake fluid container.
3 Power Brake Booster Pump Fluid Accumulator Fitting Spring
4 Power Brake Booster Pump Fluid Accumulator Fitting