GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Brakes 🢒 Air Brakes 🢒 Air Brake Application Valve Leakage Test
  1. Block the wheels.
  2. Have an assistant apply the brake pedal.

    3. Object Number: 202535 Size: SH
  3. Coat the exhaust port and the body of the application valve (4) with a soap solution.
  4. A 25 mm (1 in) bubble leakage in 3 seconds is permitted.
  5. Replace or overhaul the valve (4) if the leakage exceeds this amount. Refer to Air Brake Application Valve Replacement or Air Brake System Description and Operation .
  6. Check that the brakes are operating.
  7. Remove the wheel blocks.