Removal Procedure

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. 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 .
Carefully remove the throttle body air inlet duct.
Remove the spark plug wires at the left bank.
Using the J 38185, reposition the hose clamp at the thermostat housing.
Remove the upper radiator hose from the housing.

Fig 1: Removing Upper Radiator Hose
Courtesy of GENERAL MOTORS CORP.
Disconnect the heater outlet hose from the thermostat bypass pipe (2).
Disconnect the throttle body inlet and outlet hoses from the thermostat bypass pipe (1).

Fig 2: Disconnecting Hoses From Thermostat Bypass Pipe
Courtesy of GENERAL MOTORS CORP.
Remove the thermostat bypass pipe-to-throttle body nut.

Fig 3: Removing Thermostat Bypass Pipe-To-Throttle Body Nut
Courtesy of GENERAL MOTORS CORP.
Using the J 38185, reposition the hose clamp at the thermostat bypass pipe.
Disconnect the thermostat bypass pipe hose.

Fig 4: Disconnecting Thermostat Bypass Pipe Hose
Courtesy of GENERAL MOTORS CORP.
Remove the thermostat bypass pipe-to-engine front cover bolt.
Remove the thermostat bypass pipe.

Fig 5: Removing Thermostat Bypass Pipe
Courtesy of GENERAL MOTORS CORP.