Fan Shroud Replacement (LS4)

Fig 1: Fan Shroud (LS4)

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: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components. NOTE: Refer to Fastener Notice . Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LS4) or Battery Negative Cable Disconnection and Connection (L26/L32) . Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 5.3L engine. Remove the engine mount strut. Refer to Engine Mount Strut Replacement for the 5.3L engine. Remove the coolant reservoir hose from the fan shroud. Disconnect the upper transaxle oil cooler pipe from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Replacement .
1	Radiator Bracket Upper Support Bolts (Qty: 2) Tighten: 10 N.m (89 lb in)
2	Radiator Upper Support Brackets (Qty: 2)
3	Fan Shroud Bolts (Qty: 2) Tighten: 6 N.m (53 lb in)
4	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 Cooling Fan Motor Replacement - Electric (LS4) or Cooling Fan Motor Replacement - Electric (L26, L32) .