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Shift Concerns: Harsh 4-5 Shift (Automatic)

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENT REFERENCE

Possible Component Reference/Action
243 - ELECTRICAL ROUTINE 
Solenoid Body   
  • Incorrect solenoid body strategy data stored in the PCM
  • Verify solenoid body strategy data stored in the PCM, download new identification and strategy as necessary. Refer to SOLENOID BODY STRATEGY .
343 - HYDRAULIC/MECHANICAL ROUTINE 
Main Control Valve Body   
  • Bolts out of torque specification
  • Tighten bolts to specification.
  • Gaskets and separator plate - damaged, off location
  • Inspect for damage. Install new as required.
  • Direct regulator and boost valves, springs, clips - loose, stuck, binding, missing, misassembled
  • Inspect for damage. Repair or install new as required.
  • Forward regulator and boost valves, springs, clips - loose, stuck, binding, missing, misassembled
  • Inspect for damage. Repair or install new as required.
  • Shift Solenoid B (SSB) or Shift Solenoid A (SSA) not functioning correctly
Direct Clutch Assembly   
  • Seals - damaged
  • Inspect for damage. Install new as required.
  • Piston - damaged
  • Inspect for damage. Install new as required.
  • Friction - damaged, worn
  • Inspect for damage. Install new as required.
  • Cylinder hub - damaged
  • Inspect for damage. Install new as required.
  • Return spring assembly - damaged
  • Inspect for damage. Install new as required.
Forward Clutch Assembly   
  • Seals - damaged
  • Inspect for damage. Install new as required.
  • Piston - damaged
  • Inspect for damage. Install new as required.
  • Friction - damaged, worn
  • Inspect for damage. Install new as required.
  • Cylinder hub - damaged
  • Inspect for damage. Install new as required.
  • Return spring assembly - damaged
  • Inspect for damage. Install new as required.
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