Engine Ground Strap Replacement 4.8L, 5.3L, 6.0L, and 6.2L

1. Remove the engine wiring harness ground bolt.
2. Reposition the engine wiring harness ground and ground strap.



3. Remove the ground strap nut from the stud at the front of dash.
4. Remove the ground strap from the stud.

1. Install the ground strap to the stud.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the ground strap nut to the stud at the front of dash.

Tighten
Tighten the nut to 9 N·m (80 lb in).




3. Position the ground strap and engine wiring harness ground.
4. Install the engine wiring harness ground bolt.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).

Engine Ground Strap Replacement 6.6L

1. Remove the engine ground strap bolt (2) from the rear of the cylinder head.
2. Reposition the engine ground strap (1) from the cylinder head.



3. Remove the ground strap nut (1) from the stud on the plenum front panel.
4. Remove the ground strap (2) from the stud and the vehicle.

1. Install the ground strap (2) to the vehicle and the stud on the plenum front panel.
2. Install the ground strap nut (1) to the stud on the plenum front panel.

Tighten
Tighten the nut to 9 N·m (80 lb in).




3. Position the ground strap (1) to the cylinder head.
4. Install the ground strap bolt (2) to the cylinder head.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).

Engine Ground Strap Replacement 4.3L

1. Remove the ground strap bolt from the rear of the left cylinder head.
2. Reposition the ground strap from the cylinder head.



3. Remove the ground strap nut from the stud at the front of dash.
4. Remove the ground strap from the stud.

Notice: Refer to Fastener Notice in the Preface section.




1. Install the ground strap to the stud.
2. Install the ground strap nut to the stud at the front of dash.

Tighten
Tighten the nut to 9 N·m (80 lb in).




3. Position the ground strap to the rear of the left cylinder head.
4. Install the ground strap bolt.

Tighten
Tighten the bolt to 16 N·m (12 lb ft).