Generator Replacement 4.3L

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.



3. Remove the heater hose brace bolt from the generator.



4. Remove the generator mounting bolts.
5. Remove the generator from the mounting bracket.



6. Disconnect the generator electrical connector.



7. Remove the generator output (BAT) terminal retaining nut from the generator.

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.

1. Connect the generator output (BAT) terminal wire.

Ensure the insulating boot is covering the terminal nut.

Tighten
Tighten the generator output (BAT) terminal nut to 17 N·m (12 lb ft).




2. Connect the generator electrical connector.



3. Install the generator to the generator mounting bracket.
4. Install the generator mounting bolts.

Tighten
Tighten the generator mounting bolts to 50 N·m (37 lb ft).




5. Install the heater hose bracket bolt to the generator.

Tighten
Tighten the heater hose bracket to the generator bolt to 25 N·m (18 lb ft).

6. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .