Brake Pressure Modulator Valve Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Brake Pressure Modulator Valve & Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: Refer to Brake Fluid Irritant Caution . NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice . NOTE: Always connect or disconnect the wiring harness connector from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this precaution could result in damage to the EBCM/EBTCM. Preliminary Procedures Turn the ignition switch to the OFF position. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove any dirt and debris from the area of the brake pressure modulator valve (BPMV) assembly. Disconnect the electronic brake control module (EBCM) electrical connector.
1	Master Cylinder Inlet Brake Pipe Fitting (Qty: 2) NOTE: Refer to Fastener Notice . Tip: Cap the brake pipe fittings to prevent brake fluid loss and contamination. Tighten: 18 N.m (13 lb ft)
2	Front Wheel Outlet Brake Pipe Fitting (Qty: 2) Tip: Cap the brake pipe fittings to prevent brake fluid loss and contamination. Tighten: 18 N.m (13 lb ft)
3	Rear Wheel Outlet Brake Pipe Fitting (Qty: 2) Tip: Cap the brake pipe fittings to prevent brake fluid loss and contamination. Tighten: 18 N.m (13 lb ft)
4	Brake Pressure Modulator Valve (BPMV) Bracket Bolt (Qty: 3) Tip: It is not necessary to remove the bolts; loosen the bolts and slide the BPMV and bracket assembly toward the front of the vehicle to remove. Tighten: 22 N.m (16 lb ft)
5	BPMV Nut (Qty: 2) Tip: If removing the BPMV bracket from the BPMV, only loosen the mounting nuts. Tighten: 9 N.m (80 lb in)
6	BPMV Bracket
7	BPMV Assembly Procedure If necessary, remove the EBCM from the BPMV. Refer to Electronic Brake Control Module Replacement . Carefully lift the BPMV upward and release the BPMV from the lower grommet. DO NOT pry on the underside of the BPMV. After the installation is complete, bleed the antilock brake system. Refer to Antilock Brake System Automated Bleed Procedure . Calibrate the brake pressure sensor. Refer to Electronic Brake Control Module Programming and Setup .