GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Eye Protection Caution in the Preface section.

    Caution: Refer to Folding Top Hydraulic Pressure Caution in the Preface section.

    Caution: Refer to Servicing Electrical Components Caution in the Preface section.


    Object Number: 1294372  Size: SH
  1. Place the folding top in the up position.
  2. Open the rear compartment.

  3. Object Number: 1274144  Size: SH
  4. Lower the rear compartment partition (1).
  5. Lower the closeout curtain.
  6. Place a protective covering over the interior and the adjacent body panels.
  7. Locate the hydraulic pump beneath the carpet in the storage compartment on the driver side of the rear compartment.

  8. Object Number: 1274131  Size: SH
  9. Turn the pump bypass valve (1) counterclockwise until the valve stops.
  10. Remove floor panel storage from the rear compartment. Refer to Body Rear Compartment Replacement in Interior Trim.

  11. Object Number: 1237547  Size: SH
  12. Push up on the over-center link (1) until the closeout panels start to move.

  13. Object Number: 1274135  Size: SH
  14. Grasp the compartment closeout panel and pull the panel open with one hand, while using your other hand to assist one of the outer panels to an open position.

  15. Object Number: 1247441  Size: SH
  16. Remove the spring-clip (2) from the cylinder retainer pin (1).

  17. Object Number: 1247442  Size: SH
  18. Remove the cylinder retainer pin (1).

  19. Object Number: 1247443  Size: SH
  20. Remove the cylinder retainer spring-clip (1).

  21. Object Number: 1247444  Size: SH
  22. Remove the cylinder (1) from the link (2).

Disassembly Procedure

    Notice: Refer to Cylinder Hoses Notice in the Preface section.


    Object Number: 1247299  Size: SH

    Important: Once the cylinder hose or the port plug has been removed, do NOT move the cylinder rod. This will cause fluid to squirt out of the ports.

  1. Ensure that the ignition switch is in the OFF position and that the folding top has not been operated under power for at least 6 minutes.
  2. Remove the reservoir filler plug (1).

  3. Object Number: 1226132  Size: SH

    Important: Remove the 2 hose connectors one at a time. This procedure is repeated later for the second hose.

  4. Using a small flat-bladed tool, release the retainer clip (1) from one of the cylinder hoses.

  5. Object Number: 1226135  Size: SH

    Important: Before disconnecting the cylinder hoses, have the replacement cylinder ready.

  6. Remove the cylinder hose retainer clip (1).

  7. Object Number: 1226139  Size: SH
  8. Remove the cylinder hose (1). Use a clean shop towel to control any hydraulic fluid leakage.

  9. Object Number: 1226143  Size: SH
  10. Remove the cylinder hose O-ring (1).
  11. Important: Replacement cylinders are filled with fluid. Do NOT remove the port plug from the cylinder until you are ready to connect the cylinder hose.

  12. Using a small flat-bladed tool, release one of the port plug retainer clips from the replacement cylinder.
  13. Remove the retainer clips from the replacement cylinder.
  14. Remove the port plug from the replacement cylinder.
  15. Remove the port plug O-ring from the replacement cylinder.

Assembly Procedure


    Object Number: 1226145  Size: SH
  1. Install a new O-ring (1) onto the cylinder hose (2).
  2. Install the hose into the cylinder port (3). Press down on the hose until the hose is fully seated in the cylinder.

  3. Object Number: 1226152  Size: SH
  4. Install a new cylinder hose retainer clip (1). Inspect the retainer clip to ensure that the clip is fully seated around the hose (2).
  5. Repeat this procedure for the other hose.

  6. Object Number: 1247299  Size: SH
  7. Install the reservoir filler plug (1).

Installation Procedure


    Object Number: 1247444  Size: SH
  1. Install the cylinder (1) to the link (2).

  2. Object Number: 1247443  Size: SH
  3. Install the cylinder retainer spring-clip (1).

  4. Object Number: 1247442  Size: SH
  5. Install the cylinder retainer pin (1).

  6. Object Number: 1247441  Size: SH
  7. Install the spring-clip (2) to the cylinder retainer pin (1).
  8. Remove the protective covering.
  9. Install the floor panel storage to the rear compartment. Refer to Body Rear Compartment Replacement in Interior Trim.
  10. Raise the closeout curtain.

  11. Object Number: 1274131  Size: SH
  12. Turn the pump bypass valve (1) clockwise until the valve stops.
  13. Install the support and the carpet over the hydraulic pump.

  14. Object Number: 1274144  Size: SH
  15. Raise the rear compartment partition (1).
  16. Close the rear compartment.
  17. Bleed the hydraulic system. Refer to Folding Top Hydraulic System Bleeding Procedure .
  18. Inspect the hydraulic system for fluid leaks.
  19. Inspect the fluid level of the hydraulic system and add fluid as needed. Refer to Folding Top Fluid Addition .
  20. Inspect the folding top for proper operation. Refer to Power Folding Top Description and Operation .