Diagnostic Routine 221/321 - Shift Concerns: No 2-3 Shift (Automatic)

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

SHIFT CONCERNS: NO 2-3 SHIFT (AUTOMATIC)

Possible Component	Reference/Action
221 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical Inputs/Outputs, Vehicle Wiring Harnesses, Powertrain Control Module (PCM), Shift Solenoid (SSA), Internal Wire Harness	Run On-Board Diagnostic. Refer to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE for diagnosis. Go To PINPOINT TEST A: SHIFT SOLENOID . Repair as required. Clear codes. Road Test and rerun On-Board Diagnostic.
321 - HYDRAULIC/MECHANICAL ROUTINE
Incorrect Pressures
Line pressure, EPC pressure	Check pressure at EPC and line taps. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . See the LINE PRESSURE CHART . If not OK, check the Main Control Valve Body.
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.
1-2 Shift Valve, 2-3 Shift Valve, 2-3 Capacity Modulator Valve - stuck, damaged	Inspect. Repair as required.
B8 Check Ball - damaged, missing	Inspect for damage. Repair as required.
SSA damaged	Activate the solenoid using the Transmission Tester. If the solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
Support Assembly - Driven Sprocket
Seals - damaged, missing, holes blocked	Inspect for damage. Repair as required.
Direct One-Way Clutch
Not holding, damaged	Inspect for damage. Install new as required.
Direct Clutch Assembly
	Carry out Air Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Seals - damaged	Inspect for damage. Install new as required.
Piston - damaged	Inspect for damage. Install new as required.
Friction Plates - damaged or worn	Inspect for damage. Install new as required.
Check Ball - not seating	Inspect for damage. Install new as required.
Return Spring Assembly - damaged	Inspect for damage. Install new as required.
2-3 Accumulator
Pistons, Seals - leaking, damaged	Inspect for damage. Install new as required.
Rod or Bore, Spring - damaged	Inspect for damage. Install new as required.