Engine Coolant Fan Lower Shroud Replacement 4.3L, 4.8L, 5.3L, 6.0L

1. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 4.8L, 5.3L, 6.0L engines or Air Cleaner Assembly Replacement for the 4.3L engine.



3. Remove the fan shroud bolts (1,3,4).
4. Remove the fan shroud (2,5).

1. Install the fan shroud (2,5).

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 fan shroud bolts (1,3,4).

Tighten
Tighten the bolts to 6 N·m (53 lb in).

3. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 4.8L, 5.3L, 6.0L engines or Air Cleaner Assembly Replacement for the 4.3L engine.
4. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .

Engine Coolant Fan Lower Shroud Replacement 6.6L

1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .



2. Remove the upper fan shroud to lower fan shroud retaining bolts.
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .



4. Remove the lower fan shroud retaining bolts.



5. Remove the lower fan shroud from the vehicle.

Important: Align lower fan shroud to the upper fan shroud with the alignment pins in the upper fan shroud.

1. Install the lower fan shroud to the vehicle.

Notice: Refer to Fastener Notice in the Preface section.




2. Install the lower fan shroud retaining bolts.

Tighten
Tighten the bolts to 6 N·m (53 lb in).

3. Lower the vehicle.



4. Install the upper fan shroud to lower fan shroud retaining bolts.

Tighten
Tighten the bolts to 6 N·m (53 lb in).

5. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .