GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Cooling 🢒 Surge Tank Pipe Replacement - Outlet
  1. Remove the front wheelhouse panel.

    2. Object Number: 198949 Size: SH
  2. Remove the front intake air duct (1) from the air filter housing.
  3. Drain the coolant. Refer to Cooling System Draining and Filling .
  4. Remove the radiator surge tank outlet hose and the clamp.
  5. Remove the surge tank outlet pipe.
  6. Inspect the following components for cracks or leaks:
    7. • The radiator
    • The surge tank
    • The pipes
    • The hoses

Installation Procedure

    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.

  1. Install the surge tankoutlet pipe.

    2. Tighten
    Tighten the flare nut on the 7.2L engine only to 35 N·m (26 lb ft).

  2. Install the radiator surge tank outlet hose and the clamp.

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


    Object Number: 198949 Size: SH
  3. Install the front intake air duct (1) to the air filter housing.
  4. Install the front wheelhouse panel.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling .
  6. Check the system for leaks.