Sierra 1500 2WD V8-5.3L Hybrid (2004)
Vacuum Pump: Service and Repair
Brake Assist Pump Motor Replacement
Removal Procedure
1. Remove the vacuum hose from the brake assist pump.
2. Disconnect the electrical connector.
3. Remove the brake assist pump nuts.
4. Remove the brake assist pump from the booster by pulling the inlet tube out of the grommet.
Installation Procedure
1. Install the brake assist pump to the booster by pushing the inlet tube into the grommet and aligning the studs to the holes.
2. Notice:
Refer to Fastener Notice in Service Precautions.
