Sierra, Silverado 2006-2007

Master Cylinder

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Removal & Installation



  1. Disconnect the clutch pedal position switch electrical connector.
  2.  
  3. Push the clutch pedal in and squeeze the pushrod bushing tabs in, in order to release the pushrod bushing from the clutch pedal.
  4.  
  5. If equipped with a NV 3500 or NV 4500 transmission:
    1. Disconnect the clutch slave cylinder to clutch master cylinder quick connect fitting.
    2.  
    3. Remove the clutch master cylinder clip from the brake pressure module valve pipe.
    4.  

  6.  
  7. If equipped with a ZF S6-650 transmission:
    1. Disconnect the clutch slave cylinder to clutch master cylinder quick connect fitting.
    2.  
    3. Rotate the clutch master cylinder 45 degrees clockwise to the unlocked position.
    4.  

  8.  
  9. Remove the clutch master cylinder.

    Click image to see an enlarged view

    Fig. Clutch slave cylinder to clutch master cylinder quick connect fitting-NV 3500 or NV 4500 transmissions



    Click image to see an enlarged view

    Fig. Clutch slave cylinder to clutch master cylinder quick connect fitting-ZF S6-650 transmission

  10.  

To install:

  1. If equipped with a ZF S6-650 transmission
    1. Install the clutch master cylinder.
    2.  
    3. Push in and rotate the clutch master cylinder 45 degrees counterclockwise to the locked position.
    4.  
    5. Connect the clutch slave cylinder to clutch master cylinder quick connect fitting.
    6.  

  2.  
  3. If equipped with a NV 3500 or NV 4500 transmission
    1. Install the clutch master cylinder.
    2.  
    3. Connect the clutch slave cylinder to clutch master cylinder quick connect fitting.
    4.  

  4.  
  5. Install the clutch master cylinder clip to the brake pressure module valve pipe.
  6.  
  7. Apply light pressure to the clutch pedal to couple the pushrod socket to the clutch pedal.
  8.  
  9. Connect the clutch pedal position switch electrical connector.
  10.  
  11. Pump the clutch pedal 3 time prior to starting the vehicle to ensure connection is complete.
  12.  

 
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