GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Brakes 🢒 Air Brakes 🢒 Front Axle Service Reservoir Air Supply Valve Operational Check
  1. Block the wheels.
  2. Exhaust the air pressure from the main air supply reservoir.

    3. Object Number: 202596 Size: MH
  3. Connect a shop air hose to the inflation valve.
  4. Fill the supply reservoir.
  5. Check that the reservoir fills.
  6. Remove the wheel blocks.