Removal Procedure

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Surge Tank Cap

Courtesy of GENERAL MOTORS CORP.

CAUTION: With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result.

Remove the surge tank cap.
Place a drain pan under the heater hoses near the front of the dash.
Remove the dash panel exterior sound barrier.

Fig 2: View Of Heater Core Tubes And Outlet Hose

Courtesy of GENERAL MOTORS CORP.

Reposition the heater outlet hose clamp at the heater core using J 38185 .
Remove the heater outlet hose from the heater core and tilt the hose downward toward the drain pan to drain the coolant from the hose.

Fig 3: Identifying Heater Outlet Hose (2.0L)

Courtesy of GENERAL MOTORS CORP.

Reposition the hose heater outlet hose clamp at the engine using J 38185 .
Remove the heater outlet hose from the engine.