GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Surge Tank Replacement
  1. Remove the front wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  2. Partially drain the coolant. Refer to Cooling System Draining and Filling .

    3. Object Number: 199125 Size: SH
  3. Remove the coolant level sensor connector (1).

    4. Object Number: 199119 Size: SH
  4. Reposition the radiator surge tank inlet hose clamps.
  5. Remove the radiator surge tank inlet hose.
  6. Reposition the radiator surge tank outlet hose clamps.
  7. Remove the radiator surge tank outlet hose.
  8. Reposition the surge tank overflow hose clamp.
  9. Remove the surge tank overflow.
  10. Remove the low coolant sensor.
  11. Remove the radiator surge tank cap.

    12. Object Number: 199133 Size: SH
  12. Remove the radiator surge tank bolts.
  13. Remove the radiator surge tank from the mounting bracket.
  14. Inspect the radiator surge tank mounting bracket for cracks. Replace the mounting bracket if damaged.

Installation Procedure

    Object Number: 199133 Size: SH
  1. Install the radiator surge tank to the mounting bracket.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the radiator surge tank bolts.

    3. Tighten
    Tighten the radiator surge tank bolts to 13 N·m (115 lb in).

  3. Install the low coolant sensor.
  4. Reposition the radiator surge tank inlet hose clamp.
  5. Install the radiator surge tank inlet hose.
  6. Reposition the radiator surge tank outlet hose clamp.
  7. Install the radiator surge tank outlet hose.

    8. Tighten
    Tighten the radiator surge tank hose clamps to 3 N·m (27 lb in).

  8. Install the surge tank overflow hose and the clamp.

    9. Object Number: 199125 Size: SH
  9. Connect the low coolant sensor connector (1).
  10. Install the front wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  11. Fill the cooling system. Refer to Cooling System Draining and Filling .