Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. 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 spark plug wire harness from the thermostat Bypass pipe.
Remove the thermostat Bypass pipe to throttle Body nut.

Fig 1: Removing Thermostat Bypass Pipe To Throttle Body Nut
Courtesy of GENERAL MOTORS CORP.
Remove the thermostat Bypass pipe to throttle Body hose clamps (1).
Remove the thermostat Bypass pipe to cylinder head nut (3).
Remove the thermostat Bypass pipe Bolt (4).
Remove the thermostat Bypass pipe Bolt hose clamp (5).

Fig 2: Removing Thermostat Bypass Pipe Clamps And Bolts
Courtesy of GENERAL MOTORS CORP.
Remove the thermostat Bypass pipe hose.
Remove the thermostat Bypass pipe.

Fig 3: Removing Thermostat Bypass Pipe Hose
Courtesy of GENERAL MOTORS CORP.