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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1398 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSGENERATOR REPLACEMENT (4.2L ENGINE)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
  2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.2L.
    3. Fig 1: Rear Of Generator (Alternator) View
    GM754357Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the battery positive cable nut (1) on the generator.
    4. Fig 2: View Of Engine Lift Hook & A/C Bracket Bolt
    GM754344Courtesy of GENERAL MOTORS CORP.
  4. Remove the A/C line mounting bracket bolt at the engine life hook.
    5. Fig 3: View Of Engine Lift Bracket
    GM750247Courtesy of GENERAL MOTORS CORP.
  5. Remove the right engine lift hook bolts and remove the lift hook.
    6. Fig 4: View Of Generator & Mounting Bolts
    GM753668Courtesy of GENERAL MOTORS CORP.
  6. Remove the 3 generator mounting bolts and remove the generator.
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.