GM Service Manual Online
For 1990-2009 cars only

Tools Required

GE-47716 Vac N Fill Coolant Refill Tool

Removal Procedure

  1. Drain the engine coolant. Refer to Cooling System Draining and Filling .

  2. Object Number: 1646806  Size: SH
  3. Remove the surge tank inlet hose clamp from the surge tank.
  4. Disconnect the surge tank inlet hose from the surge tank.

  5. Object Number: 1646808  Size: SH
  6. Remove the surge tank bolts from the surge tank.
  7. Lift the surge tank to gain access to the heater outlet hose.
  8. Remove the heater outlet hose clamp from the surge tank.
  9. Remove the heater outlet hose from the surge tank.
  10. Remove the surge tank from the vehicle.

Installation Procedure


    Object Number: 1646808  Size: SH
  1. Install the heater outlet hose to the surge tank.
  2. Install the surge tank to the vehicle.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the surge tank bolts to the surge tank.
  5. Tighten
    Tighten the bolts to 9 N·m (80 lb in).


    Object Number: 1646806  Size: SH
  6. Connect the surge tank inlet hose to the surge tank.
  7. Install the surge tank inlet hose clamp to the surge tank.
  8. Fill the engine coolant. Refer to Cooling System Draining and Filling .