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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 509 (Automatic Transmission - Cd4E) >> Diagnosis And Testing >> Diagnosis By Symptom >> Diagnostic Routines >> Shift Concerns: Soft/Slip 2-3 Shift Only (Automatic)

Shift Concerns: Soft/Slip 2-3 Shift Only (Automatic)

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
SHIFT CONCERNS: SOFT/SLIP 2-3 SHIFT ONLY (AUTOMATIC)

Possible Component Reference/Action
227 - ELECTRICAL ROUTINE 
Powertrain Control System  -
  • Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, EPC solenoid, transmission fluid temperature (TFT) sensor
327 - HYDRAULIC/MECHANICAL ROUTINE 
Pump Assembly  -
  • Bolts out of torque specification
  • Adjust bolts to specification.
  • Gaskets damaged
  • Inspect for damage. Install new as necessary.
  • Pump support seals No. 4 or No. 5 damaged, missing
  • Inspect for damage. Install new as necessary.
Main Control  -
  • Bolts out of torque specification
  • Adjust bolts to specification.
  • Gasket leaks
  • Inspect for damage. Install new as necessary.
  • Line modulator valve (also soft 1-2 and 3-4 shifts), servo release shuttle valve stuck, damaged or misassembled
  • Inspect for damage. Install new as necessary.
  • Hydraulic passages damaged
  • Inspect for damage. Install new as necessary.
  • Separator plates damaged
  • Inspect for damage. Install new as necessary.
  • Pressure tap plate/gasket leaks
  • Inspect for damage. Install new as necessary.
Direct Clutch Assembly  -
-
  • Carry out Air Pressure Test.
  • Seals or piston damaged
  • Inspect for damage. Install new as necessary.
  • Piston bore damaged
  • Inspect for damage. Install new as necessary.
  • Friction elements damaged, worn or excessive end clearance
  • Inspect for damage. Check end clearance. Repair as necessary.
  • Check ball not seating correctly
  • Inspect for damage. Install new as necessary.
  • Return spring assembly damaged
  • Inspect for damage. Install new as necessary.
Intermediate/Overdrive Servo  -
  • Piston or piston bore damaged
  • Inspect for damage. Install new as necessary.
  • Servo rod or rod bore damaged
  • Inspect for damage. Install new as necessary.
Case  -
  • Leakage in the servo apply, servo release or direct clutch circuits
  • Inspect for case damage. Carry out Air Pressure Test.
Forward One-Way Clutch Assembly  -
  • Not holding, damaged
  • Inspect for damage. Install new as necessary.
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