Diagnostic Routine 226/326 - Shift Concerns: Soft/Slipping 1-2 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: SOFT/SLIPPING 1-2 SHIFT (AUTOMATIC)

Possible Component	Reference/Action
226 - ELECTRICAL ROUTINE
No electrical concerns.
326 - HYDRAULIC/MECHANICAL ROUTINE
Incorrect Pressures
Line pressure, EPC pressure	Carry out Line Pressure and Stall Speed Tests. Check pressure at EPC and line taps. Refer to SPECIAL TESTING PROCEDURES . See the LINE PRESSURE CHART . If not OK, check the following possible component: Main Control.
Main Control
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, Springs, Clips - loose, stuck, missing, misassembled	Inspect. Repair as required.
Pump Assembly
Porosity/cross leak	Inspect. Install new as required.
Gaskets - damaged, off location	Inspect for damage. Install new as required.
Components - damaged	Inspect for damage, missing ball. Install new pump assembly if required.
1-2 Accumulator Assembly
Piston Seals, Springs - damaged, missing	Inspect for damage. Repair as required.
Support Assembly - Driven Sprocket
Seals - damaged, missing	Inspect for damage, missing or blockage. Repair as required.
Holes - partially blocked
Intermediate Clutch Assembly
Seals - damaged, leaking	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 Lube Groove - restricted	Inspect for restriction. Repair as required.