Shift Concerns: Soft/Slip 1-2 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 1-2 SHIFT ONLY (AUTOMATIC)

Possible Component	Reference/Action
226 - ELECTRICAL ROUTINE
Powertrain Control System	-
Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, EPC solenoid, transmission fluid temperature (TFT) sensor	Run On-Board Diagnostic Tests. Refer to INTRODUCTION - GASOLINE . Carry out Stall Speed Tests. Refer to SPECIAL TESTING PROCEDURES . GO to PINPOINT TEST B and GO to PINPOINT TEST E .
326 - HYDRAULIC/MECHANICAL ROUTINE
Main Control	-
Bolts out of torque specification	Adjust bolts to specification.
Gaskets damaged	Inspect for damage. Repair as necessary.
2-4 accumulator piston plug and seal (also soft 3-4 shift), main regulator valve, line modulator valve (also soft 3-4 shift) stuck, damaged or misassembled	Inspect for damage. Repair as necessary.
Hydraulic passages damaged	Inspect for damage. Repair as necessary.
Pressure tap plate/gasket damaged	Inspect for damage. Repair as necessary.
Separator plates damaged	Inspect for damage. Repair as necessary.
Intermediate/Overdrive Band and Servo Assembly	-
Piston out of torque specification	Inspect for damage. Repair as necessary.
Servo rod or rod bore damaged	Inspect for damage. Repair as necessary.
Intermediate overdrive band or reverse clutch drum assembly worn, damaged or misassembled	Inspect for damage. Repair as necessary.
Springs damaged	Inspect for damage. Repair as necessary.
Servo cover and seal damaged	Inspect for damage. Repair as necessary.
Forward One-Way Clutch Assembly (Slips in 1st)	-
Not holding or damaged	Inspect for damage. Repair as necessary.
Forward clutch assembly (slips in 1st)	Carry out Air Pressure Test.
Seals damaged	Inspect for damage. Repair as necessary.
Return spring damaged	Inspect for damage. Repair as necessary.
Friction elements damaged	Inspect for damage. Repair as necessary.
Pump support seals No. 3, No. 4 damaged	Inspect for damage. Repair as necessary.
Low One-Way Clutch Assembly	-
Not overrunning, damaged	Inspect for damage. Repair as necessary.
Low Reverse Clutch Assembly	-
Friction elements severely damaged	Inspect for damage. Repair as necessary.
Case	-
Band anchor damaged	Inspect for damage. If damaged, install a new case.
Porosity/leakage in servo apply, servo release circuits	Inspect the case for leakage/porosity. Carry out Air Pressure Tests. Refer to SPECIAL TESTING PROCEDURES . Install a new case as necessary.