How To: Replace LS1 Alternator
Generator Replacement 5.7L
Removal Process

- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
- Remove the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical-5.7L
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the positive cable from the generator:
- Slide the boot down revealing the positive terminal stud.
- Remove the positive cable nut from the generator output stud.
- Remove the positive cable.

5. Remove the generator rear bracket mounting bolt.
6. Remove the transmission oil cooler lines from the oil cooler clip.
6. Remove the transmission oil cooler lines from the oil cooler clip.

7. Remove the front generator mounting bolts and oil cooler clip.

8. Disconnect the generator electrical connector (3).
19. Remove the generator from the vehicle.
- Install the generator to the vehicle.
- Connect the generator electrical connector (3).
- Install the front generator mounting bolts and oil cooler clip. Tighten
4. Install the transmission oil cooler lines to the oil cooler clip.

5. Install the generator rear bracket mounting bolt. Tighten
Tighten the rear bracket mounting bolt to 25 N·m (18 lb ft).

6. Install the positive cable to the generator:
- Install the positive cable.
- Install the positive cable nut to the generator output stud. Tighten
Tighten the positive cable nut to the generator output stud to 22N·m (16 lb ft).
- Slide the boot over the positive terminal stud.
8. Install the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechanical-5.7L.

9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .