Installation Procedure

Important:  Lubricate the inside diameters of the hoses with clean coolant prior to installation.

1. Install the surge tank.
2. Install the heater outlet hose to the surge tank.
3. Reposition the heater outlet hose clamp to the surge tank.
   Fig 1: Installing Heater Outlet Hose To Surge Tank

   Courtesy of GENERAL MOTORS CORP.
4. Install the surge tank inlet (1) hose to the surge tank.
5. Reposition the surge tank inlet hose clamp.
6. Install the surge tank outlet hose to the surge tank.
7. Reposition the surge tank outlet hose clamp (2) to the surge tank.
   Fig 2: Installing Surge Tank Inlet Hose & Outlet Hose To Surge Tank

   Courtesy of GENERAL MOTORS CORP.

   Important:  When installing the surge tank ensure that the front stud is fully seated in the slot.

8. Install the surge tank onto the studs.
   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
9. Install the surge tank nuts.
10. Tighten the nuts.
    1. 10.1. Bottom
    2. 10.2. Top rear
    3. 10.3. Top front

       Tighten 

       Tighten the radiator surge tank nuts to 10 N.m (89 lb in).

11. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
    Fig 3: Upper Surge Tank

    Courtesy of GENERAL MOTORS CORP.