LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 1987 >> Electra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Disc & Drum) >> Bleeding >> Bleeding Master Cylinder

Bleeding Master Cylinder

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, 1990 Cadillac Fleetwood, and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If master cylinder requires bleeding, it must be done with master cylinder installed on vehicle.
  1. Depressurize ABS system (if equipped). Remove power brake reserve by applying brakes several times with the ignition off until all reserve is depleted. Ensure fluid level in master cylinder reservoir is adequate.
  2. Loosen front hydraulic line(s) on master cylinder and allow fluid to fill the master cylinder until it begins to flow from the front line connector port.
  3. Tighten front brake lines. Depress and hold the brake pedal slowly one time and hold. Loosen the front brake line connection at the master cylinder to purge air from the cylinder. Tighten the brake line and then slowly release the brake pedal.
  4. After waiting fifteen seconds, repeat the process, including the fifteen second wait, until all air is purged from the forward end of master cylinder. Repeat process for rear brake line connection(s).
scientia non olet · About LEMON Manuals