Fan Shroud Replacement (LS4)

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Fan Shroud & Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
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: Refer to Battery Disconnect Caution . Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) or Battery Negative Cable Disconnection and Connection (LY7) or Battery Negative Cable Disconnection and Connection (LS4) . Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement . Remove the engine mount struts. Refer to Engine Mount Strut Replacement . Remove the coolant reservoir hose from the fan shroud LS4 only. 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 NOTE: Refer to Fastener Notice . Tighten: 10 N.m (89 lb in)
2	Radiator Upper Support Bracket
3	Fan Shroud Bolt Tighten: 6 N.m (53 lb in)
4	Fan Shroud Bolt 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 (L26) or Engine Coolant Fan Motor Replacement (LY7) or Engine Coolant Fan Motor Replacement (LS4) .