GM Service Manual Online
For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2004 🢒 C-Series Medium Duty Truck C6/7/8 - Mexico 🢒 Engine 🢒 Engine Exhaust 🢒 Engine Brake Actuator Control Valve Replacement

Removal Procedure
  1. Drain air from the air tanks. Refer to Draining Reservoirs in Air Brakes.
  2. Tag and disconnect air lines from the control valve.

    3. Object Number: 385857 Size: SH
  3. Dicsonnect the electrical connector from the control valve.
  4. Remove nuts, washers, bolts and control valve from the frame crossmember.
  5. Note the position of the elbows.

    6. Object Number: 385847 Size: SH
  6. Remove the elbows from the control valve.

Installation Procedure

    Object Number: 385847 Size: SH
  1. Install the elbows in the correct position.

    2. Object Number: 385857 Size: SH
  2. Install the control valve to the frame crossmember with the nuts, washers, bolts.
  3. Connect the electrical connector to the control vavle.

    4. Object Number: 385853 Size: SH
  4. Connect the air lines to the control valve.
  5. Refill air back into the resivoir. Refer to Filling Reservoirs in Air Brakes.
  6. Inspect the system for leaks. Refer to Air Brake System Testing in Air Brakes.