Avalanche 2500 4WD V8-8.1L VIN G (2003)
harness into the hole in the frame.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the forward lamp wiring harness ground/negative cable bolt.
Tighten
Tighten the bolt to 9 N.m (80 lb in).
4. If equipped with a 8.1L engine, position the wiring harness ground and negative cables. Position the anti-rotation tab on the negative cable in the
correct location.
IMPORTANT: The engine wiring harness ground is to be installed under the negative cable ground.
5. Install the engine wiring harness ground/negative cable bolt.
Tighten
Tighten the bolt to 25 N.m (18 lb ft).
6. Lower the vehicle.
7. Install the negative cable clip to the positive cable clip.
8. If equipped with a 4.8L, 5.3L, or 6.0L engine, position the negative cable and engine wiring harness ring terminals to the engine block. Position
the anti-rotation tab on the negative cable in the correct location.
9. Install the engine wiring harness ground/negative cable bolt.
Tighten
Tighten the bolt to 25 N.m (18 lb ft).
10. Lower the vehicle.
11. Install the negative cable clip to the positive cable clip.
