GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Sun Runner - 4WD (Canada) 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Replacement

Removal Procedure
  1. Remove the radiator cap.
  2. Raise and support the Vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 167697 Size: SH
  3. Open the drain plug (3).
  4. Drain the radiator.
  5. Close the drain plug (3).

    6. Object Number: 167710 Size: SH
  6. Place a pan under the radiator to catch any transmission fluid that may leak.
  7. Remove the hose clamps and transmission fluid cooler hoses (2) from the radiator (automatic transmission equipped vehicles).
  8. Remove the two lower shroud bolts (1).

    9. Object Number: 167717 Size: SH
  9. Loosen the hose clamp and remove the radiator outlet hose #1 (8) from the radiator.
  10. Lower the vehicle.

    11. Object Number: 167714 Size: SH
  11. Remove the two bolts and reposition the A/C flexible hose (4) to the rear (if equipped).
  12. Remove the two bolts and reposition the power steering fluid reservoir (if equipped).

    13. Object Number: 167709 Size: SH
  13. Remove the two upper shroud bolts and reposition the shroud (2) to the rear.
  14. Loosen the hose clamp and remove the radiator inlet hose (5) from the radiator (1).
  15. Loosen the hose clamp and remove the radiator overflow hose from the radiator filler neck.
  16. Remove the four bolts and the radiator (1) from the vehicle.

Installation Procedure

    Object Number: 167709 Size: SH
  1. Install the radiator into the vehicle.

    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. Secure the radiator with the four bolts.

    3. Tighten
    Tighten the radiator bolts to 10 N·m (89 lb in).

  3. Install the overflow hose to the radiator filler neck. Secure with a hose clamp after positioning the hose over the filler neck flares.
  4. Install the radiator inlet hose (5) to the radiator (1). Secure with a hose clamp after positioning the hose over the radiator flares.
  5. Reposition the shroud (2) on the radiator. Secure with the two bolts.

    6. Tighten
    Tighten the shroud bolts to 11 N·m (97 lb in).

  6. Reposition the A/C flexible hose (4) to the top of the shroud (2) (if equipped). Secure with the two bolts.

    7. Tighten
    Tighten the air conditioning flexible hose bolts to 15 N·m (11 lb ft).

  7. Reposition the power steering fluid reservoir (if equipped). Secure with the two bolts.

    8. Tighten
    Tighten the power steering fluid reservoir bolts to 15 N·m (11 lb ft).

  8. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    9. Object Number: 167710 Size: SH
  9. Install the transmission fluid cooler hoses (2) to the radiator (automatic transmission equipped vehicles). Secure with hose clamps.

    10. Object Number: 167717 Size: SH
  10. Install the radiator outlet hose #1 (8) to the radiator. Secure with a hose clamp (1) after positioning the hose over the radiator flares.
  11. Install the two lower shroud bolts.

    12. Tighten
    Tighten the shroud bolts to 11 N·m (97 lb in).

  12. Lower the vehicle.
  13. Fill the radiator with approved coolant. Refer to Cooling System Draining and Filling in this section.
  14. Install the radiator cap to the radiator.
  15. Inspect the transmission fluid level (automatic transmission equipped vehicles).