Shift Concerns: Feel - Harsh

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC ROUTINES REFERENCE

Possible Component	Reference/Action
214 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical inputs/outputs, vehicle wiring harnesses, PCM, Line Pressure Control (LPC) solenoid, Mass Air Flow (MAF) sensor, Throttle Position (TP) sensor, Output Shaft Speed (OSS) sensor, Turbine Shaft Speed (TSS) sensor, Engine Coolant Temperature (ECT) sensor, Intake Air Temperature (IAT) sensor, Power Steering Pressure (PSP) switch, Transmission Fluid Temperature (TFT) sensor, Transmission Range (TR) sensor Shift Solenoid A (SSA), Shift Solenoid B (SSB), Shift Solenoid C (SSC), Shift Solenoid D (SSD) and Shift Solenoid E (SSE)	Run On-Board Diagnostic (OBD). Refer to INTRODUCTION - GASOLINE MODELS for diagnosis. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C and GO to PINPOINT TEST D .
Solenoid Body
Incorrect solenoid body strategy data stored in the PCM	Verify solenoid body strategy data stored in the PCM, download new identification and strategy as necessary. Refer to SOLENOID BODY STRATEGY .
314 - HYDRAULIC/MECHANICAL ROUTINE
Transmission Fluid
Incorrect level	Check transmission fluid level and adjust as necessary. Refer to PRELIMINARY INSPECTION .
Condition	Carry out transmission fluid condition check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
Line pressure - high	Carry out Line Pressure and Stall Speed Tests. Refer to SPECIAL TESTING PROCEDURES . Check pressure at LPC pressure taps. See the LINE PRESSURE CHART for specifications. If pressures are high or all shifts are harsh, check the main control. Refer to MAIN CONTROL VALVE BODY . If pressures are OK and a specific shift is harsh. See the appropriate shift routine in the following chart: Shift 1-2, Routine 240/340 Shift 2-3, Routine 241/341 Shift 3-4, Routine 242/342 Shift 4-5, Routine 243/343 Shift 5-6, Routine 244/344 Shift 6-5, Routine 245/345 Shift 5-4, Routine 246/346 Shift 4-3, Routine 247/347 Shift 3-2, Routine 248/348 Shift 2-1, Routine 249/349
Main Control Valve Body
Plugged solenoid body filter	Inspect for damage. Install new as required.
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate - damaged, off location	Inspect for damage. Install new as required.
Valves, springs, clips, check balls - stuck, damaged	Inspect for damage. Repair or install new as required.
Pump Assembly
Pump assembly - worn/cross leaks, leaking	Inspect for damage. Install new as required.