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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 >> Harsh or Late Third, Fifth, and Reverse Shift

Harsh or Late Third, Fifth, and Reverse Shift

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Checks Causes
3-5 Reverse Clutch Assembly
  • Inspect for damaged splines or improper surface finish on 3-5 Reverse Clutch Plates (507509), Backing Plate (510)
  • Inspect for damaged, worn or leaking 3-5 Reverse Clutch Piston Seals (504506)
  • Inspect for warped 3-5 Rev/4-5-6 Clutch Housing (516)
  • Inspect for broken or fatigued 3-5 Reverse Clutch Waved Plate (507)