Caution: Keep hands, tools, and clothing away from the electric engine coolant fans in order to help prevent personal injury. These fans are electric and can turn on whether or not the engine is running. The fans can start automatically with the ignition in the ON position.

Caution: An electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

Caution: To help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

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.

Preliminary Procedure

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 3.5L engine or to Air Cleaner Assembly Replacement for the 3.9L engine or Air Cleaner Assembly Replacement for the 5.3L engine.
3. Remove the engine mount struts. Refer to Engine Mount Strut Replacement for the 3.5L engine or to Engine Mount Strut Replacement for the 3.9L engine or Engine Mount Strut Replacement for the 5.3L engine.
4. Remove the coolant reservoir hose from the fan shroud LS4 only.
5. Disconnect the upper transaxle oil cooler pipe from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

1

Radiator Bracket Upper Support Bolt

Notice: Refer to Fastener Notice in the Preface section.

Tighten
10 N·m (89 lb in)

2

Radiator Upper Support Bracket

3

Fan Shroud Bolt

Tighten
6 N·m (53 lb in)

4

Condenser Hold Down Bracket

Procedure

Remove the bolt that connects the fan shroud to the condenser hold down bracket.

Tighten
6 N·m (53 lb in).

5

Fan Shroud

Tip
When replacing the fan shroud, remove the cooling fan motors. Refer to Engine Coolant Fan Motor Replacement .