GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1997 🢒 Safari - 2WD 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Replacement

Removal Procedure
  1. Drain the coolant from the radiator. Refer to Draining and Filling Cooling System .

    2. Object Number: 26015 Size: SH
  2. Remove the air cleaner assembly. Refer to Air Cleaner in Engine Controls.

    3. Object Number: 48314 Size: SH
  3. Remove the upper fan shroud. Refer to Fan Shroud Replacement .

    4. Object Number: 48316 Size: SH
  4. Remove the lower fan shroud. Refer to Fan Shroud Replacement .

    5. Object Number: 48320 Size: SH
  5. Disconnect the radiator hoses from the radiator. Refer to Radiator Hose Replacement .

    6. Object Number: 108128 Size: SH
  6. Disconnect the transmission oil cooler lines from the radiator. Refer to Oil Cooler Hose/Pipe Replacement in Automatic Transmission.

    7. Object Number: 48326 Size: SH
  7. Disconnect the engine oil cooler lines from the radiator. Refer to Oil Cooler Line Replacement .

    8. Object Number: 48317 Size: SH
  8. Disconnect the coolant recovery reservoir hose from the radiator filler neck.

    9. Object Number: 108126 Size: SH
  9. Remove the radiator grille. Refer to Radiator Grille Replacement in Sheet Metal.
  10. Remove the four bolts attaching the A/C condenser to the radiator. Refer to Condenser in Heater, Ventilation and Air Conditioning.
  11. Remove the radiator.

Installation Procedure

    Object Number: 108126 Size: SH
  1. Install the radiator.
  2. Install the four bolts attaching the A/C condenser to the radiator. Refer to Condenser in Heater, Ventilation and Air Conditioning.
  3. Install the radiator grille. Refer to Radiator Grille Replacement in Sheet Metal.

    4. Object Number: 48317 Size: SH
  4. Connect the coolant recovery reservoir hose to the radiator filler neck.

    5. Notice: Do not reuse the existing retaining clips removed from the cooler line connector fittings. The retaining clips being put into the cooler line connector fittings must be new.

    Notice: Make sure the retaining clip engages all three slots in the connector fittings. Failure to properly install the connector clips could cause the cooler lines to come loose and cause damage to the engine and/or the transmission.


    Object Number: 48326 Size: SH
  5. Connect the engine oil cooler lines to the connector fittings. Refer to Oil Cooler Line Replacement .

    6. Object Number: 108128 Size: SH
  6. Connect the transmission oil cooler lines into the connector fittings. Refer to Oil Cooler Hose/Pipe Replacement in Automatic Transmission.

    7. Notice: Two sealant pellets GMSPO part no. 3634621 must be added to the radiator whenever the cooling system is drained or refilled with fresh coolant. Failure to use the correct sealant pellets may result in premature coolant pump leakage. Do not add the pellets to the coolant recovery bottle, this may prevent the coolant recovery system from operating properly.


    Object Number: 48320 Size: SH
  7. Connect the radiator inlet hose and the outlet hose to the radiator. Refer to Radiator Hose Replacement .

    8. Object Number: 48316 Size: SH
  8. Install the lower fan shroud. Refer to Fan Shroud Replacement .

    9. Object Number: 48314 Size: SH
  9. Install the upper fan shroud bolts and the upper fan shroud. Refer to Fan Shroud Replacement .

    10. Tighten
    Tighten the upper shroud bolts to 15 N·m (11 lb ft). Refer to

    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.


    Object Number: 26015 Size: SH
  10. Install air cleaner assembly. Refer to Air Cleaner
  11. Refill the coolant. Refer to Draining and Filling Cooling System .
  12. Check engine oil fluid level. Fill to proper level.
  13. Leak test the cooling system. Refer to Cooling System Leak Testing .
  14. Start engine. Run vehicle to normal operating temperature. Check transmission oil fluid level. Fill to proper level. Check for oil and transmission fluid leaks.