Removal Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

Drain the cooling system. Refer to Draining and Filling Cooling System .
Remove the heater and surge tank hoses from the mounting clip.

Fig 1: Squeezing Quick Connect Fitting Release Tabs (Plastic Collar)

GM12777

Courtesy of GENERAL MOTORS CORP.

Squeeze the plastic retainer release tabs.

Fig 2: Pulling Connection Apart (Plastic Collar)

GM12778

Courtesy of GENERAL MOTORS CORP.

Pull the connection apart.

Fig 3: View Of Surge Tank Outlet Hose & Surge Tank

GM659059

Courtesy of GENERAL MOTORS CORP.

Reposition the surge tank outlet hose clamp at the surge tank.
Remove the surge tank outlet hose (2) from the surge tank.

Fig 4: Radiator Outlet Hose To The Radiator

GM1275812

Courtesy of GENERAL MOTORS CORP.

Remove the radiator outlet hose from the radiator. Refer to Radiator Hose Quick Connect Fitting .

Fig 5: Identifying Outlet Hose To The Water Pump

GM751427

Courtesy of GENERAL MOTORS CORP.

Reposition the outlet hose clamp the water pump.
Remove the outlet hose from the water pump.