Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install the inlet hose to the water pump.
Position the inlet hose clamp at the water pump.

Fig 1: View Of Inlet Hose & Water Pump

Courtesy of GENERAL MOTORS CORP.

Install the inlet hose to the radiator.
Position the inlet hose clamp at the radiator.
Install the inlet hose clip to the fan shroud.

Fig 2: View Of Inlet Hose & Radiator (4.8, 5.3, & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Install the radiator vent inlet hose to the radiator inlet hose clips.

Fig 3: View Of Vent Inlet Hose At Throttle Body

Courtesy of GENERAL MOTORS CORP.

If necessary, install the engine sight shield. Refer to Engine Sight Shield Replacement (4.8L, 5.3L, and 6.0L Engines) or Engine Sight Shield Replacement (6.0L Engine w/RPOs Y91 and Z88) in Engine Mechanical - 4.8L, 5.3L, and 6.0L.

IMPORTANT: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

Install the air cleaner outlet duct.

Fig 4: View Of Air Cleaner Outlet Duct (W/HP2 Front)

Courtesy of GENERAL MOTORS CORP.

Install the radiator inlet hose clip to the outlet duct.
Tighten the air cleaner outlet duct clamps at the following locations:
- Throttle body
- MAF/IAT sensor
  Tighten: Tighten the air cleaner outlet duct clamp screws to 7 N.m (62 lb in).
Fill the cooling system. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) .