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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1038 (FRONT SUSPENSION SYSTEM)REPAIR INSTRUCTIONSFRONT COIL SPRINGS 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 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    2. Fig 1: Identifying Oil Pan Skid Plate
    GM309158Courtesy of GENERAL MOTORS CORP.
  2. Remove the engine protection shield, if equipped. Refer to Engine Protection Shield Replacement in Frame and Underbody.
  3. Remove the tire and wheel assembly. Refer toTire and Wheel Removal and Installation in Tires and Wheels.
  4. Remove the shock absorber. Refer toShock Absorber Replacement (4WD) Shock Absorber Replacement (RWD) .
  5. Remove the front stabilizer shaft link. Refer toStabilizer Shaft Replacement .
    6. Fig 2: Using J23028-15
    GM357500Courtesy of GENERAL MOTORS CORP.
  6. Install J 23028-15  using the outboard locating tab.
    7. Fig 3: Attaching The Retaining Hook To The Control Arm
    GM357508Courtesy of GENERAL MOTORS CORP.
  7. Attach the retaining hook to the control arm. Tighten the wing nut until you eliminate any freeplay.
  8. Securely attach J 23028-A  to a suitable transmission jack.
    Fig 4: Attaching J 23028-A To Transmission Jack
    GM357505Courtesy of GENERAL MOTORS CORP.
  9. Raise the jack until the yokes of J 23028-A  line up with the notches in J 23028-15  .
  10. Using the J 23028-A  and the J 23028-15  and the transmission jack, relieve the spring tension from the lower control arm pivot bolts.
    Fig 5: Relieving The Spring Tension From The Lower Control Arm Pivot Bolts
    GM357518Courtesy of GENERAL MOTORS CORP.
  11. Remove the lower control arm pivot bolt.
    Fig 6: Removing The Lower Control Arm Pivot Bolt
    GM348372Courtesy of GENERAL MOTORS CORP.
  12. Remove the rear pivot bolt.
  13. Remove the front pivot bolt.
  14. Slowly lower the transmission jack in order to unload the front coil spring. It may be necessary to use a pry bar in order to guide the lower control arm out of position.
  15. Remove the coil spring and the insulator.
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.