SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 593 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSFAN SHROUD REPLACEMENTREMOVAL 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 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner assembly. Refer to the appropriate procedure:
  2. Remove the air intake duct.
  3. Remove the coolant reservoir or surge tank. Refer to Coolant Recovery Reservoir Replacement  or Surge Tank Replacement .
  4. If equipped with 4.3L, 5.0L, and 5.7L, remove the bolt securing the engine and transmission oil level indicator at the generator bracket.
    Fig 1: Removing Engine & Transmission Oil Level Indicator Bolt
    G01699607Courtesy of GENERAL MOTORS CORP.
  5. If equipped with 4.3L, 5.0L, and 5.7L, remove the bolt securing the engine oil fill tube at the generator bracket.
  6. Move the oil level indicator tubes and oil fill tube away from the fan shroud.
    Fig 2: Removing Engine Oil Fill Tube Bolt
    G01699608Courtesy of GENERAL MOTORS CORP.
  7. If equipped with 6.5L, remove the wiring harness clip retainers from the fan shroud.
  8. Remove the upper fan shroud retaining bolts from the top of the radiator.
    Fig 3: Removing Upper Fan Shroud Retaining Bolts
    G01699609Courtesy of GENERAL MOTORS CORP.
  9. Remove the upper to lower fan shroud retaining bolts.
  10. Remove the upper fan shroud from the vehicle.

    The fan shroud for the 4.3L engine will require to push the radiator intake hose aside for clearance.

  11. Remove the fan and the clutch from the engine. Refer to Fan Clutch Replacement .
    Fig 4: Removing Upper To Lower Fan Shroud Retaining Bolts
    G01699610Courtesy of GENERAL MOTORS CORP.
  12. Remove the lower fan shroud retaining bolts.
  13. Remove the lower fan shroud from the vehicle.
    Fig 5: Removing Lower Fan Shroud Retaining Bolts & Lower Fan Shroud
    G01699611Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.