GM Service Manual Online
For 1990-2009 cars only
  1. Visually inspect all of the brake pipes for the following:
  2. • Kinks, improper routing, missing or damaged retainers
    • Leaking fittings, excessive corrosion
  3. If any of the brake pipes exhibited any of conditions listed, then the identified pipe(s) requires replacement.
  4. Ensure that the vehicle axles are properly supported at ride height in order to maintain the relationship (unextended) of the flexible brake hoses to the chassis.

  5. Object Number: 681071  Size: SH
  6. Visually inspect all of the flexible brake hoses for the following:
  7. • Kinks (1), improper routing, twists, chafing, missing or damaged retainers
    • Leaking connections, cracking, dry-rot, blisters, bulges
  8. If any of the flexible brake hoses exhibited any of conditions listed, then the identified flexible brake hose(s) requires replacement.
  9. Squeeze the flexible brake hoses with firm finger pressure to check for soft spots (2), indicating an internal restriction; check the entire length of each flexible brake hose.
  10. If any of the flexible brake hoses were found to have soft spots (2), then the identified flexible brake hose(s) requires replacement.