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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 455 (ENGINE MECHANICAL)REPAIR INSTRUCTIONSON-VEHICLE REPAIR INSTRUCTIONSCRANKSHAFT BALANCER REPLACEMENTREMOVAL PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Removal Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the drive belt. Refer to DRIVE BELT REPLACEMENT  .
  2. Raise and support the vehicle.
  3. Remove the right front tire and wheel.
  4. Remove the right engine splash shield. Refer to SPLASH SHIELD REPLACEMENT -- ENGINE .
    Fig 1: Removing Crankshaft Balancer Bolt
    G01500544Courtesy of GENERAL MOTORS CORP.
  5. Install a utility stand beneath the frame right side rail in order to support the frame/powertrain.
  6. Remove the two frame right side bolts.
  7. Use the utility stand to lower the frame enough to provide access to the crankshaft balancer.
    NOTE: The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer.
  8. Remove and DISCARD the crankshaft balancer bolt.
  9. Remove the crankshaft balancer using the J 24420-C. 
  10. Clean and inspect the crankshaft balancer. Refer to CRANKSHAFT BALANCER CLEANING AND INSPECTION  .
    Fig 2: Removing Crankshaft Balancer Using Crankshaft Balancer Puller (J 24420-C)
    G01500545Courtesy of GENERAL MOTORS CORP.
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.