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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Automatic Transmission - 6T40 - DTC P0973 To DTC P2764 And Troubleshooting Procedures) >> Diagnostic Information and Procedures >> No Park

No Park

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Checks Causes
Differential Carrier Assembly (232)
  • Inspect for damaged or broken Front Differential Assembly (232).
  • Inspect for damaged or broken Front Differential Side Gear or Pinion Gear.
  • Inspect for damaged or broken Front Differential Pinion Gear Shaft.
  • Inspect for damaged or broken Front Differential Pinion Gear Shaft Pin.
  • Inspect for worn, stripped or sheared Front Differential Side Gear splines.
  • Inspect for damaged or broken Final Drive Sun, Pinion or Ring Gear.
  • Inspect for worn, stripped or sheared Final Drive Sun Gear splines.
Output Carrier Transfer Drive Gear Hub Assembly (222)
  • Inspect for broken Drive Gear Hub (222).
  • Inspect for worn, stripped or sheared Drive Gear hub (222) splines.
  • Inspect for disengaged or broken Park Gear Retainer Ring (220).
  • Inspect for damaged or broken park Gear (221).
  • Inspect for disengaged or broken Drive Sprocket Retainer Ring (227).
Drive Link Assembly (225)
  • Inspect for broken, worn or damaged Drive Link Assembly (225).
  • Inspect for broken, worn or damaged Drive Sprocket (224).
  • Inspect for broken, worn or damaged Driven Sprocket Assembly (229).
  • Inspect for worn, stripped or sheared Driven Sprocket splines.
  • Inspect for broken Drive Gear Hub (222).
Case Assembly (50)
  • Inspect for broken or damaged Case.
  • Inspect for broken or bent Park Pawl Shaft (600).
  • Inspect for broken or missing Park Pawl Actuator Guide Pin (603) or Manual Shaft Pin (611).
  • Inspect for broken or missing Manual Shaft Detent Lever Pin (610).
  • Inspect for broken or missing Manual Shift Shaft Pin (611).
  • Inspect for damaged or broken Manual Shift Detent Lever Shaft (608).
  • Inspect for loose, damaged or broken Detent Lever Spring Assembly (17).
  • Inspect for broken, loose or misaligned Park Pawl Actuator Guide (606).
  • Inspect for binding, bent or broken Park Pawl (602) or Actuator Assembly (607).