1990 Dodge B250 VAN Brake Service (ONLINE REPAIR MANUALS)

HYDRAULIC VALVE, REPLACE

• Disconnect battery ground cable.
• Raise and support vehicle.
• Disconnect electrical connectors from valve, Figs. and .
• Disconnect brake lines from hydraulic valve.
• Remove hydraulic valve attaching screws and the valve.
• Reverse procedure to install, noting the following:
• Torque valve attaching screws to 16-25 ft. lbs.
• Bleed brake system as described under "Bleeding Brakes" in "Hydraulic Brake" section.

SPEED SENSOR AIR GAP CHECK

• Remove speed sensor from differential.
• Measure distance (dimension B) between end of sensor pole piece and bottom of sensor flange, Fig. . Dista...

REMOVAL

• Raise the vehicle and remove front wheels.
• Disconnect and cap flexible brake line, then remove caliper retaining clips and anti-rattle springs, Fig. .
• Remove caliper from disc by slowly sliding caliper assembly out and away from disc. Use some means to support caliper. Do not let caliper hang from hydraulic line.

DISASSEMBLE

• With caliper and pads removed as described previously, place the caliper onto the upper control arm and slowly depress brake pedal, in turn hydraulically pushing piston out of bore.
• Support pedal below first inch of pedal travel to prevent excessive fluid ...

This procedure can be performed with master cylinder on or off vehicle.

• Disconnect brake lines at master cylinder, if necessary.
• Connect suitable lengths of brake lines to master cylinder and immerse other ends of lines in master cylinder reservoirs.
• Apply master cylinder pushrod or brake pedal with full strokes until air bubbles have disap...

The electronic control module in this system has the capability of generating and storing fault codes. If a fault is detected, the system will illuminate the amber anti-lock warning lamp and set a fault code. When a fault code is set, the amber anti-lock warning lamp will illuminate. In most cases, the red brake warning lamp will also light.

When a problem in the system is suspected, preliminary diagnosis should begin with a fluid level check and a visual inspection of the electrical and hydraulic connections in the system. If obvious faults are not found, a road test will he...

This sliding caliper single piston system uses a one or two piece hub and is actuated by the hydraulic system and disc assembly, Fig. . Alignment and positioning of the caliper is achieved by two machined guides or "ways" on the adapter, while caliper retaining clips allow lateral movement of the caliper, Fig. . Outboard pad flanges are used to position and locate the pad on the caliper fingers, Fig. , while the inboard pad is retained by the adapter, Fig. . Braking force applied onto the outboard pad is transferred to the ...

The electronic control module in this system has the capability of generating and storing fault codes. If a fault is detected, the system will illuminate the amber anti-lock warning lamp and set a fault code. When a fault code is set, the amber anti-lock warning lamp will illuminate. In most cases, the red brake warning lamp will also light.

When a problem in the system is suspected, preliminary diagnosis should begin with a fluid level check and a visual inspection of the electrical and hydraulic connections in the system. If obvious faults are not found, a road test will he...