GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Brake

Problem

Action

Inadequate air supply to the actuator
    • Inspect the air connections.
    • Inspect the available air pressure.

Damaged actuator return spring

Replace the actuator. Refer to Engine Brake Replacement .

Damaged actuator piston

Replace the actuator. Refer to Engine Brake Replacement .

Damaged ball joint

Replace the ball joint. Refer to Engine Brake Replacement .

Excessive carbon buildup
  1. Remove the exhaust brake. Refer to Engine Brake Replacement .
  2. Clean the bore and the butterfly.