Skylark V6-173 2.8L VIN X 2-bbl (1984)
15. Carefully remove ANY corrosion or contamination that may be present on the electrical ground wire terminal.
16. Install the electrical ground wire terminal to the rivet stud.
17. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin.
18. Install the M6 conductive nut to the rivet stud and:
Tighten
Tighten to 8 Nm (71 lb in).
19. Verify proper system operation.
M6 Weld Nut
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
1. If the M6 weld nut at the electrical ground location is damaged or stripped, a M7 conductive self-threading bolt may be used to secure the ground
wire terminal.
2. Using GM approved residue-free solvent or equivalent, remove any grease from the surface surrounding the weld nut and allow to dry.
3. Remove any loose metal particles from the damaged or stripped weld nut with a stiff brush.
4. Select a M7 conductive self-threading bolt. Refer to the Parts Information section of this bulletin
5. Using 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 form when there is a small motion between electrical contacts. The
oxidized wear debris can accumulate at the electrical contact points causing the electrical resistance across the connection to increase.
6. Carefully remove ANY corrosion or contamination that may be present on the electrical ground wire terminal.
7. Install the electrical ground wire terminal to the M7 conductive self-threading bolt.
8. Install the M7 conductive self-threading bolt and:
Tighten
Tighten to 9 Nm (80 lb in).
9. Verify proper system operation.
M6 Weld Nut Alternative Repair
Caution
Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
1. If the electrical ground location is accessible from both sides of the panel, a M6 conductive bolt and a M6 conductive nut may be used to secure
the electrical ground wire terminal. Refer to the Parts Information section of this bulletin.
2. Select a location adjacent the damaged M6 weld nut having 20 mm (0.79 in) clearance behind the panel surface and 20 mm (0.79 in) clearance
surrounding the new electrical ground site.
3. Using GM approved residue-free solvent or equivalent, remove any grease from the surface surrounding the ground location and allow to dry.
Note
Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
4. Drill a 8.5 mm (0.33 in) diameter hole through the panel.
5. Remove paint and primer from the area surrounding the 8.5 mm (0.33 in) hole until bare metal is visible.
6. Select a M6 conductive bolt. Refer to the Parts Information section of this bulletin.
7. 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 form when there is a small motion between electrical contacts. The
oxidized wear debris can accumulate at the electrical contact points causing the electrical resistance across the connection to increase.
8. Carefully remove ANY corrosion or contamination that may be present on the electrical ground wire terminal.
9. Install the electrical ground wire terminal and the M6 conductive bolt to the ground location.
10. Select a M6 conductive nut. Refer to the Parts Information section of this bulletin.
11. Install the M6 conductive nut to the bolt and:
