Removal Procedure

Tools Required: 

J 38185  Hose Clamp Pliers. See Special Tools .

CAUTION: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.
1. Drain the cooling system. Refer to Draining and Filling Cooling System .
2. Remove the surge tank front bolt at the front mounting bracket.
Fig 1: View of Surge Tank
Courtesy of GENERAL MOTORS CORP.
3. Disengage tension on the surge tank inlet hose clamp (1) using the J 38185  . See Special Tools .
4. Disconnect the surge tank inlet hose (1) from the surge tank.
5. Disengage tension on the surge tank outlet hose clamp using the J 38185  . See Special Tools .
6. Disconnect the surge tank outlet hose (3) from the surge tank.
7. Disengage tension on the throttle body coolant hose (2) using the J 38185  . See Special Tools .
8. Disconnect the throttle body coolant hose (2) from the surge tank.
9. Pull up on the rear of the surge tank to remove from the rear mounting bracket.
10. Remove the surge tank.