- If the M8 weld nut electrical ground location is accessible from both sides of the panel, a conductive M8 bolt and a conductive M8 nut may be used to secure the ground terminal. Refer to GM parts catalog for the correct part numbers and application.
CAUTION:
Use GM approved replacement fasteners with conductive finish for electrical ground repair.
- Select a location adjacent to M8 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.
- Using GM approved residue-free solvent or equivalent, remove any grease from the surface surrounding the ground location and allow to dry.
- Drill a 10 mm (0.40 in) diameter hole through the panel.
NOTE:
Ensure 20 mm (0.79 in) clearance is maintained behind the panel to be drilled.
- Carefully remove paint and primer from the area surrounding the new ground site until bare metal is visible.
- Using a small brush, apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the new, conductive M8 bolt threads.
- Carefully remove any corrosion from the electrical ground terminal. Refer to Testing for Intermittent Conditions and Poor Connections
.
- Install the electrical ground terminal and new, conductive M8 bolt to the ground location.
- Install the conductive M8 nut and tighten to 22 N.m (16 lb ft).
- Refinish the repair area using an anti-corrosion primer.
NOTE:
The repair area must be properly refinished to maintain positive electrical grounding.
- Check for proper system operation.