Removal Procedure

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

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

Courtesy of GENERAL MOTORS CORP.

Squeeze the plastic retainer release tabs.

Fig 2: Pulling Connection Apart (Plastic Collar)

Courtesy of GENERAL MOTORS CORP.

Pull the connection apart.

Fig 3: View Of Heater Hose To Engine

Courtesy of GENERAL MOTORS CORP.

Remove the inlet heater hose from the water pump.

Fig 4: View Of Inlet & Outlet Heater Hoses (LR4, LM7, LQ4)

Courtesy of GENERAL MOTORS CORP.

Remove the inlet heater hose.