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Shift Concerns: 2 - 3 Shift (Automatic)

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SHIFT CONCERNS: 2 - 3 SHIFT (AUTOMATIC)

Possible Component Reference/Action
221 - ELECTRICAL ROUTINE 
Powertrain Control System   
  • Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids, OSS
  • Engine driveability concerns
321 - HYDRAULIC/MECHANICAL ROUTINE 
Shift Linkage   
  • Damaged or incorrectly adjusted
Incorrect Pressures   
  • Direct clutch pressure
Main Controls   
  • 2 - 3 shift valve, check ball No. 9 or No. 3, solenoid pressure regulator valve, damaged or assembled incorrectly
  • Inspect for damage. Repair as required.
  • Bolts not tightened to specifications
  • Tighten bolts to specifications.
  • Shift solenoid SSB malfunction
  • Activate solenoid using diagnostic tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
  • Gaskets damaged
  • Inspect for damage and install a new gasket.
  • Output shaft seals damaged or cup plug leaking or missing
  • Inspect for damage and repair as required.
  • 2 - 3 accumulator damaged or stuck
  • Inspect piston seal and bore for damage. Repair as required.
  • Solenoid screen (in main control) blocked or damaged
  • Clean or install a new screen.
Intermediate One-Way Clutch Assembly   
  • Not overrunning or damaged
  • Inspect for damage. Repair as required.
Output Shaft   
  • Seal rings damaged
  • Cup plug damaged or missing
  • Inspect for damage. Repair as required.
Direct Clutch Assembly   
  • Seals or piston damaged
  • Inspect for damage. Repair as required.
  • Friction elements worn or damaged
  • Inspect for damage. Repair as required.
  • Check ball not seating
  • Inspect for damage. Repair as required.
  • Return spring assembly damaged
  • Inspect for damage. Repair as required.
Case   
  • Output shaft rear seals leaking or damaged
  • Inspect for damage. Repair as required. Inspect case for damaged seal area. If damaged, install a new case.
2-3 Accumulator   
  • Damaged accumulator piston
  • Inspect for damage. Repair as required.
  • Springs damaged or broken
  • Inspect for damage. Repair as required.
  • Case bore scored
  • Inspect for damage. Repair as required.