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10-08-45-001D Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish - (Feb 14 2013) - part 2

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The oxidized wear debriscan accumulate at the electrical contact points causing the electrical resistanceacross the connection to increase.

Carefully remove ANY corrosion or contamination that may be present on the electrical ground wire terminal.Install the electrical ground wire terminal to the rivet stud.Select a M6 conductive nut. Refer to the Parts Information section of this bulletin.Install the M6 conductive nut to the rivet stud and:

Tighten

Tighten to 8 Y (71 lb in).Verify proper system operation.M6 Weld Nut

Caution:Use only the GM-approved replacement fasteners with conductive finish for electricalground repair.

If the M6 weld nut at the electrical ground location is damaged or stripped, a M7conductive self-threading bolt may be used to secure the ground wire terminal.Using GM approved residue-free solvent or equivalent, remove any grease from the surfacesurrounding the weld nut and allow to dry.Remove any loose metal particles from the damaged or stripped weld nut with a stiffbrush.Select a M7 conductive self-threading bolt. Refer to the Parts Information sectionof this bulletinUsing a small brush, apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529)to the threads of the M7 conductive self-threading bolt.

Note:Fretting corrosion is a build-up of insulating, oxidized wear debris that can formwhen there is a small motion between electrical contacts. The oxidized wear debriscan accumulate at the electrical contact points causing the electrical resistanceacross the connection to increase.

Carefully remove ANY corrosion or contamination that may be present on the electrical ground wire terminal.Install the electrical ground wire terminal to the M7 conductive self-threading bolt.Install the M7 conductive self-threading bolt and:

Tighten

Tighten to 9 Y (80 lb in).Verify proper system operation.M6 Weld Nut Alternative Repair

Caution:Use only the GM-approved replacement fasteners with conductive finish for electricalground repair.

If the electrical ground location is accessible from both sides of the panel, a M6conductive bolt and a M6 conductive nut may be used to secure the electrical groundwire terminal. Refer to the Parts Information section of this bulletin.Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearancebehind the panel surface and 20 mm (0.79 in) clearance surrounding the new electricalground site.Using GM approved residue-free solvent or equivalent, remove any grease from the surfacesurrounding the ground location and allow to dry.

Note:Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.

Drill a 8.5 mm (0.33 in) diameter hole through the panel.Remove paint and primer from the area surrounding the 8.5 mm (0.33 in) hole untilbare metal is visible.Select a M6 conductive bolt. Refer to the Parts Information section of this bulletin.Using a small brush, apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529)to the threads of the M6 conductive bolt.

Note:Fretting corrosion is a build-up of insulating, oxidized wear debris that can formwhen there is a small motion between electrical contacts.

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