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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 638 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR REPLACEMENT (L47)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 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the cooling fans. Refer to Cooling Fan Replacement - Electric (LX5)  or Cooling Fan Replacement - Electric (L47)  .
  2. Using the J 37097-A  remove the clamp.
  3. Remove the outlet radiator hose from the radiator.
    4. Fig 1: Removing Outlet Radiator Hose
    G01817593Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the lower transaxle oil cooler line from the radiator.
  5. Remove the upper radiator seal.
    6. Fig 2: Removing Upper Radiator Seal
    G01817594Courtesy of GENERAL MOTORS CORP.
  6. Remove the headlamps. Refer to HEADLAMP REPLACEMENT .
  7. Remove the 2 condenser mounting bolts.
    Fig 3: Removing Condenser Mounting Bolts
    G01817595Courtesy of GENERAL MOTORS CORP.

    Important:  Care should be taken when removing the condenser not to damage the lower attachment points of both the radiator and condenser.

  8. Lift the condenser upward slightly in order to release the lower feet from the lower mounting features located at the front of the radiator.
  9. Lift the radiator up and out of the vehicle.
    Fig 4: Removing Radiator
    G01817596Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.