K Tahoe 4WD V8-5.7L VIN R (1996)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
The BPMV is not serviceable and must be replaced as a unit.
1. Disconnect battery ground cable, then raise and support vehicle.
2. Disconnect four EBCM electrical connectors.
3. Disconnect combination valve electrical connector and brake pipes.
Use shop towels to prevent brake fluid spillage.
4. Disconnect hydraulic lines at BPMV tube adapters, then remove EHCU from vehicle.
5. Remove four Torx bolts from EBCM, then separate BPMV from EBCM.
Do not pry on components to separate.
6. Reverse procedure to install, noting the following:
a. Install a new EBCM gasket, mounting bolts and transfer tubes. Do not reuse these components.
b. Torque combination valve bolts alternately to 6 ft. lbs., then to 12 ft. lbs.
c. Torque EBCM Torx bolts to 39 inch lbs. in a crisscross pattern.
d. Torque EHCU to base bracket bolts and BPMV bolts to 7 ft. lbs.
e. Torque brake pipe fittings to 18 ft. lbs., then bleed brake system. See: Brake Bleeding
