Toyota Previa 1991-1997 Repair Information

Hydraulic System Bleeding

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See Figures 1 and 2

If any maintenance on the clutch system was performed or the system is suspected of containing air, bleed the system. Use care; brake fluid will remove the paint from any surface. If the brake fluid spills onto any painted surface, wash it off immediately with soap and water.

  1. Fill the clutch reservoir with brake fluid. Check the reservoir level frequently and add fluid as needed.
  2.  
  3. Connect one end of a vinyl tube to the bleeder plug on the slave cylinder and submerge the other end into a clear container half-filled with brake fluid.
  4.  
  5. Slowly pump the clutch pedal several times.
  6.  



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Fig. Fig. 1: Have an assistant pump the clutch pedal several times ...

  1. Have an assistant hold the clutch pedal down and loosen the bleeder plug until fluid and/or air starts to run out of the bleeder plug. Close the bleeder plug while the pedal is held to the floor.
  2.  

Do not allow the pedal to rise back up while the bleeder is still open. If this happens, it will allow air to re-enter the slave cylinder and cause the clutch system not to work properly.

  1. Repeat Steps 2 and 3 until all the air bubbles are removed from the system.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: ... while he is holding the pedal down, loosen the bleeder plug until fluid runs out

  1. Tighten the bleeder plug when all the air is gone.
  2.  
  3. Refill the master cylinder to the proper level as required.
  4.  
  5. Check the system for leaks.
  6.  

 
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