Shift Concerns: Feel - Soft/Slipping

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: FEEL - SOFT/SLIPPING

Possible Component	Reference/Action
213 - ELECTRICAL ROUTINE
Powertrain Control System	-
-	Carry out Shift Point Road Test. Refer to SHIFT POINT ROAD TEST .
Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, EPC solenoid, transmission fluid temperature (TFT) sensor, throttle position sensor, mass air flow sensor	Run On-Board Diagnostics Tests. Refer to INTRODUCTION - GASOLINE . GO to PINPOINT TEST B and GO to PINPOINT TEST E .
Fluid	-
Incorrect level	Fill to correct level.
Condition	Inspect fluid level and condition. Refer to PRELIMINARY INSPECTION .
External Shift Linkage	-
Damaged, out of adjustment	Inspect and repair as necessary. Verify linkage adjustment. Refer to AUTOMATIC TRANSAXLE-TRANSMISSION EXTERNAL CONTROLS - CD4E . After repairing linkage, verify that the transmission range sensor is correctly adjusted.
Incorrect Pressures	-
Low line pressure	Check pressures at line tap. Carry out Line Pressure Tests. Refer to SPECIAL TESTING PROCEDURES . If pressures are low or all shifts are soft/slipping, check the following components: main control, pump assembly, fluid filter/seal assembly. If pressures are OK and a specific shift is soft/slipping, refer to the appropriate routine(s) for additional diagnosis. Soft/Slip 1-2 Shift, Routine 226/326 Soft/Slip 2-3 Shift, Routine 227/327 Soft/Slip 3-4 Shift, Routine 228/328 Soft/Slip 4-3 Shift, Routine 229/329 Soft/Slip 3-2 Shift, Routine 230/330 Soft/Slip 2-1 Shift, Routine 231/331
Main Controls	-
Bolts out of torque specification	Adjust bolts to specification.
Gaskets damaged	Inspect gaskets. Install new as necessary.
Main regulator valve, line modulator valve stuck, damaged or misassembled or springs missing, tangled or damaged	Inspect for damage. Repair as necessary.
EPC solenoid stuck or damaged	Inspect for damage, contamination. Activate solenoid using Transmission Tester. Repair as necessary.
Separator plates damaged, blocked	Inspect for damage. Repair as necessary.
Pressure tap plate/gasket damaged or missing	Inspect for damage. Repair as necessary.
Pump Assembly	-
Bolts out of torque specification	Adjust bolts to specification.
Gaskets damaged	Inspect for damage. Repair as necessary.
Porosity/cross leaks	Inspect for damage. Repair as necessary.
Fluid Filter/Seal Assembly	-
Filter/seal damaged, plugged or missing	Install new filter and seal assembly.
Recirculating seal damaged or out of position	Install new recirculating seal.