Chevrolet Sonic 2012 Body Repair Manual page 355

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BODY REPAIR 0-3
Collision Repair
13. Tack weld the part into position.
14. Inspect the service rear rail for proper dimensions, using 3-dimensional measuring equipment.
15. Plug weld at each 8 mm (5/16 in)plug weld hole location.
16. Stitch weld along the entire sectioning joint. Make welds along the seam with 25 mm (1 in)gaps between. Weld the gaps.
17. Clean and prepare the welded surfaces.
18. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and
Repair .
19. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems .
20. Install all related panels and components.
21. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
22. Enable the SIR system. Refer to SIR Disabling and Enabling .