Chevrolet Silverado / GMC Sierra. Manual — part 724

4. Disconnect the electronic brake control module (EBCM) electrical connector.

1

Master Cylinder Inlet 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)

NOTE:

Refer to Fastener Notice .

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 Mounting Nut (Qty: 2)
Procedure:
If removing the BPMV bracket from the BPMV, only loosen the mounting nuts.

Tighten: 9 N.m (80 lb in)

6

BPMV Mounting Bracket

7

BPMV Assembly

Procedure

1. If necessary, remove the EBCM from the BPMV. Refer to Electronic

Brake Control Module Replacement (JH6, JH7) or Electronic Brake
Control Module Replacement (JD9, JF3, JF7).

2. Carefully lift the BPMV upward and release the BPMV from the lower

grommet. DO NOT pry on the underside of the BPMV.

3. Bleed the BPMV. Refer to Antilock Brake System Automated Bleed

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

BRAKE PRESSURE MODULATOR VALVE REPLACEMENT (JH6, JH7)

Fig. 8: View Of Brake Pressure Modulator Valve & Components
Courtesy of GENERAL MOTORS CORP.

Procedure (With JL4) or Antilock Brake System Automated Bleed
Procedure (Without JL4).

4. Calibrate the brake pressure sensor. Refer to Electronic Brake Control

Module Programming and Setup .

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.

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado