GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Cobalt 🢒 Body Repair 🢒 Collision Repair 🢒 Body Lock Pillar Outer Panel Reinforcement Replacement

Removal Procedure

    Warning: Refer to Approved Equipment for Collision Repair Warning in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  3. Remove all related panels and components.
  4. Repair as much of the damaged area as possible. Refer to Dimensions - Body.
  5. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.

    6. Object Number: 870945 Size: SH

    Note: Do not damage any inner panels or reinforcements.

    Note: Note the number and location of the factory welds for installation of the center pillar reinforcement.

  6. Locate and drill out all the necessary factory welds.

    7. Object Number: 870947 Size: SH
  7. Remove the damaged front pillar.

Installation Procedure

    Object Number: 870943 Size: SH

    Note: If the location of the original plug weld holes can not be determined, space the plug weld holes every 40 mm (1½ in) apart.

  1. Drill 8 mm (5/16 in) plug weld holes in the service reinforcement as necessary in the corresponding locations noted on the original panel.
  2. Prepare all mating surfaces for welding as necessary.
  3. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair.

    4. Object Number: 870945 Size: SH
  4. Position the service part on the vehicle using 3-dimensional measuring equipment. Clamp the part in place.
  5. Plug weld accordingly.
  6. Clean and prepare all of the welded surfaces.
  7. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  8. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems.
  9. Install all of the related panels and components.
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  11. Enable the SIR system. Refer to SIR Disabling and Enabling.