GM Service Manual Online
For 1990-2009 cars only

Notice: DO NOT use fluid which has been bled from a hydraulic clutch system, in order to fill the clutch master cylinder reservoir, due to the possibility that the fluid may be aerated, have too much moisture content, or be contaminated and may cause system or vehicle damage.

  1. Ensure the reservoir is filled to the fill line with new hydraulic clutch fluid. Add fluid if required. Use GM P/N 12345347 or equivalent.
  2. Press the clutch pedal all the way down to the floor.
  3. Open the bleeder on the actuator cylinder to purge the air.
  4. Important: Ensure no air is drawn into the clutch system.

  5. Close the bleeder and release the clutch pedal.
  6. Repeat steps 2, 3 and 4 until all air is out of the clutch system.
  7. 5.1. Inspect and refill the reservoir as needed while bleeding.
    5.2. After bleeding, pump the clutch pedal several times. If the clutch engagement is not satisfactory, repeat the bleed procedure.
  8. If the previous procedures are unsuccessful, perform the following steps:
  9. 6.1. Pump the clutch pedal very fast for 30 seconds.
    6.2. Stop pumping and let the air escape into the reservoir.
    6.3. Repeat this procedure as necessary.