Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 719 (ENGINE MECHANICAL - 3.8L (UNIT REPAIR))REPAIR INSTRUCTIONSCRANKSHAFT BALANCER REMOVAL

1999 GMC Forward Control 5.7 R, Automatic

Crankshaft Balancer Removal

1999 GMC Forward Control 5.7 R, AutomaticSECTION Crankshaft Balancer Removal

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 37096 Flywheel Holding Tool
J 38197-A Crankshaft Balancer Puller

Use J 37096 in order to hold the flywheel.

Fig 1: J 37096
Courtesy of GENERAL MOTORS CORP.
Remove the crankshaft balancer bolt.

Fig 2: Crankshaft Balancer Bolt
Courtesy of GENERAL MOTORS CORP.
Use the J 38197-A in order to remove the crankshaft balancer.
Important: Do not separate the crankshaft pulley from the crankshaft balancer. Service the crankshaft pulley and the crankshaft balancer as an assembly.
1. 3.1. Invert J 38197-2 so the leg of the tool is facing away from the crankshaft balancer.
2. 3.2. Install the silver screws J 38197-4 to the crankshaft balancer.
3. 3.3. Turn J 38197-1 to remove the crankshaft balancer from the crankshaft.
4. 3.4. Remove J 38197-1, J 38197-2, and J 38197-4 from the crankshaft balancer.
  
  Fig 3: J 38197-A
  Courtesy 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.