Aurora 2001-2003

Flywheel or Flexplate & Ring Gear

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Removal & Installation



3.5L Engine
  1. Remove the transaxle, as outlined in the Drive Train Section.
  2.  
  3. Install Special Tool J 43442, Flywheel Holder, or equivalent, in order to prevent flywheel rotation.
  4.  
  5. Loosen the 8 engine flywheel mounting bolts.
  6.  
  7. Remove 7 of the 8 engine flywheel mounting bolts leaving 1 bolt at the top of the crankshaft rotation.
  8.  
  9. Remove the flywheel holding tool.
  10.  
  11. Grip the engine flywheel and remove the remaining bolt. Do not drop the engine flywheel when removing the final bolt.
  12.  
  13. Remove the engine flywheel.
  14.  
  15. Clean and inspect the engine flywheel.
  16.  

To install:

  1. Apply sealant, GM P/N 12346004 or equivalent, to engine flywheel retaining bolts.
  2.  
  3. Place the engine flywheel in position on the crankshaft.
  4.  
  5. Slip one bolt into the engine flywheel washer.
  6.  
  7. Install the washer and a bolt in a location at the top of the engine flywheel rotation allowing the engine flywheel to hang in position. Install a bolt at the bottom of the engine flywheel rotation allowing the engine flywheel to hang in position.
  8.  
  9. Install the flywheel holder tool in order to prevent flywheel rotation.
    NOTE
    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  10.  
  11. Install the remaining engine flywheel bolts.
  12.  
  13. Tighten the engine flywheel retaining bolts to 11 ft. lbs (15 Nm), plus an additional 50 degrees, using a torque angle meter.
  14.  
  15. Remove the flywheel holding tool.
  16.  
  17. Install the transaxle.
  18.  

4.0L Engine
  1. Remove the transaxle assembly, as outlined in the Drive Train Section.
    WARNING
    Do not reuse the flywheel bolts.

  2.  
  3. Remove the eight mounting bolts.
  4.  
  5. Remove the flywheel and the reinforcement.
  6.  
  7. Clean and inspect the engine flywheel.
  8.  

To install:

  1. Position the flywheel and the reinforcement to the crankshaft.
  2.  
  3. Apply sealant, GM P/N 12346004 or equivalent, to the flywheel mounting bolts.
    NOTE
    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4.  
  5. Install the eight NEW mounting bolts. Tighten in two passes:
    1. First Pass: Tighten to 11 ft. lbs. (15 Nm).
    2.  
    3. Final Pass: Tighten an additional 50 degrees using a torque angle meter.
    4.  

  6.  
  7. Install the transaxle assembly.
  8.  

 
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