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Shift Concern: Some/All Shifts Missing (Automatic Mode Only)

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
SHIFT CONCERN: SOME/ALL SHIFTS MISSING (AUTOMATIC MODE ONLY

Possible Component Reference/Action
210 - ROUTINE 
Powertrain Control System   
  • PCM, vehicle wiring harnesses, Shift Solenoids A, B, C, Torque Converter Clutch (TCC) solenoid, Pressure Control Solenoids A, B, C, Output Shaft Speed (OSS) sensor, digital TR sensor, I AT sensor, VSS input
Some Shifts Missing ONLY   
 
  • If only some shifts are missing, determine which shift(s) is missing.
  • Refer to the following routine(s) for further No Shift concerns:
    • No 1-2 Shift, Routine 220
    • No 2-3 Shift, Routine 221
    • No 3-4 Shift, Routine 222
    • No 4-5 Shift, Routine 270
    • No 5-4 Shift, Routine 271
    • No 4-3 Shift, Routine 223
    • No 3-2 Shift, Routine 224
    • No 2-1 Shift, Routine 225
Fluid   
  • Incorrect level
  • Adjust fluid to correct level, refer to the in this article.
  • Condition
  • Carry out Fluid Condition Check. For additional information, refer to PRELIMINARY INSPECTION  in this article.
Shift Cable/Digital TR Sensor   
  • Cable system or digital TR sensor damaged, misaligned
Incorrect Pressures   
  • High/low pressures
Main Control   
  • Screws not tightened to specification
  • Tighten to specification.
  • Separator plate damaged
  • Inspect for damage. If damaged, install a new separator plate.
  • Contamination
  • Disassemble and clean.
  • Valve, springs damaged, misassembled, missing, stuck or bore damaged
  • If damaged or parts are missing, install new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transmission damage.
  • Filter damaged, missing
  • Inspect for damage, repair as necessary.
Fluid Pump Assembly   
  • Screws not tightened to specification
  • Tighten screws to specification.
  • Gasket damaged
  • Inspect for damage. If damaged, install a new gasket.
  • Porosity, cross leaks, ball missing, plugged hole
  • Inspect for damage. If damaged, repair as necessary.
  • Pump gears cracked and/or seized
  • Inspect for damage. Install a new pump.
  • Flow control valves, springs, or seals damaged, stuck or not assembled correctly
  • Inspect for damage. Install a new seal or flow control valve.
OD Planetary Assembly   
  • Planetary damaged
  • Inspect for damage. Repair as necessary.
Center Support   
  • Screw not tightened to specification
  • Tighten to specification.
  • Seal rings or bearing damaged
  • Inspect for damage. Repair as necessary.
  • Outside diameter of case bore damaged
  • Inspect for damage. Repair as necessary.
  • Support damaged or leaking
  • Inspect for damage. Repair as necessary.
Direct Clutch Assembly   
  • Seals, piston damaged
  • Inspect for damage. Repair as necessary.
  • Check ball damaged, missing, not seating, off location
  • Inspect for mislocation, poor seating, damage. Install a new cylinder.
  • Friction elements damaged or worn
  • Inspect for damage. Repair as necessary.
  • Return springs damaged
  • Inspect for damage. Repair as necessary.
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