Shift Concerns: 2-1 Shift (Automatic)

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

SHIFT CONCERNS: 2-1 SHIFT (AUTOMATIC)

Possible Component	Reference/Action
225 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical inputs/outputs, vehicle wiring harnesses, PCM, shift solenoids	Carry out Self-Test. REFER to the INTRODUCTION - GASOLINE article for diagnosis and testing of the Powertrain Control System. GO to PINPOINT TEST A . Repair as required. Clear DTCs, road test and repeat Self-Test.
325 - HYDRAULIC/MECHANICAL ROUTINE
Incorrect Pressures
Intermediate clutch	Check pressure at intermediate clutch tap. Refer to the CLUTCH PRESSURE TEST for specifications. If not within specifications, check main controls and pump.
Main Controls
1-2 shift valve, 1-2 accumulator solenoid pressure regulator valve stuck, damaged or assembled wrong	Inspect for damage. Repair as required.
Bolts not tightened to specifications	Tighten bolts to specifications.
SSA malfunction	Activate solenoid using diagnostic tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage; repair as required.
Gaskets damaged	Inspect for damage and install a new gasket.
Pump
Gaskets damaged	Inspect for damage and install a new gasket.
Porosity/cross leaks	Inspect for leak/porosity. Install a new pump as required.
Intermediate Clutch Assembly
Piston damaged	Inspect for damage. Repair as required.
Friction elements damaged, worn	Inspect for damage. Repair as required.
End clearance incorrect	Inspect and correct. Refer to Transmission ASSEMBLY .
Intermediate One-Way Clutch
Damaged	Inspect for damage. Repair as required.
Intermediate one-way clutch retaining snap ring not seated	Inspect for damage. Repair as required.
Planetary One-Way Clutch
Not holding or damaged	Inspect for damage. Repair as required.