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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1811 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR REPLACEMENT (LAT)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Battery Box Inlet Air Duct
    GM948926Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill)  or Draining and Filling Cooling System (GE 47716 Fill) .
  2. Remove the front fascia. Refer to Front Bumper Fascia Replacement (Redline) or Front Bumper Fascia Replacement (Standard) .
  3. Remove the battery box inlet air duct.
    4. Fig 2: View Of CRFM Closeout/Splash Panel To Condenser
    GM948958Courtesy of GENERAL MOTORS CORP.
  4. Remove the condenser radiator fan module (CRFM) closeout panel retainers from the condenser.
  5. Remove the CRFM closeout panel from the condenser.
    6. Fig 3: View Of Fan Assembly Bolts From The Radiator
    GM931378Courtesy of GENERAL MOTORS CORP.
  6. Remove the fan assembly bolts from the radiator.
  7. Lift the fan assembly to disengage the lower retention tabs.
  8. Position the fan assembly away from the radiator.
  9. Remove the front bumper impact bar. Refer to Front Bumper Impact Bar Replacement .
    10. Fig 4: View Of Condenser To The Radiator
    GM949047Courtesy of GENERAL MOTORS CORP.
  10. Lift the condenser while holding the upper retention tabs forward.
  11. Position the condenser away from the radiator.
  12. Disconnect the transmission cooler lines from the radiator, if equipped.
    13. Fig 5: View Of CRFM Mounting Brackets To The Radiator Support
    GM948980Courtesy of GENERAL MOTORS CORP.
  13. Remove the CRFM bracket bolts from the radiator support.
  14. Remove the CRFM brackets from the radiator.
    15. Fig 6: View Of Radiator Inlet Hose
    GM1340565Courtesy of GENERAL MOTORS CORP.
  15. Remove the radiator inlet hose clamp from the radiator.
  16. Remove the radiator inlet hose from the radiator.
    17. Fig 7: View Of Radiator Outlet (L61) Hose Clamp
    GM931390Courtesy of GENERAL MOTORS CORP.
  17. Remove the radiator outlet hose clamp from the radiator.
  18. Remove the radiator outlet hose from the radiator.
    19. Fig 8: View Of Radiator Seals
    GM931817Courtesy of GENERAL MOTORS CORP.
  19. Remove the radiator from the vehicle.
  20. Remove the radiator seals from the radiator.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.