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Home >> Chevrolet >> 1991 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Bleeding Brake System >> Manual Bleeding Procedure
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Manual Bleeding Procedure

  1. With engine off, release reserve vacuum by applying brakes several times. Fill master cylinder with brake fluid and keep reservoir half full during bleeding procedure.
  2. If master cylinder is suspected to have air in it, disconnect forward brake line at master cylinder. Allow brake fluid to fill master cylinder bore until it flows from forward port of master cylinder. Install and tighten forward brake line at master cylinder.
  3. Depress brake pedal one time and hold down. Loosen forward brake line at master cylinder to purge air from master cylinder. Tighten forward brake line. Release brake pedal.
  4. Wait 15 seconds and repeat step 3) until no air exists in master cylinder. Tighten forward brake line to 13 ft. lbs. (18 N.m).
  5. To bleed brake calipers, place box wrench over bleeder valve. Attach one end of clear tube over bleeder valve and submerge other end in container partially filled with clean brake fluid.
  6. Slowly depress brake pedal and hold. Starting at right front wheel, loosen bleeder valve to purge air from cylinder. Tighten bleeder valve and slowly release brake pedal. Repeat procedure until all air is removed. Tighten bleeder valve to 80 INCH lbs. (9 N.m).
  7. Repeat procedure on remaining brake calipers in following sequence: right rear wheel, left rear wheel and left front wheel. Fill master cylinder and replace cover.
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