Diagnostic Routine 253/353 - Other Concerns: Poor Vehicle Driveability Concerns

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.

OTHER CONCERNS: POOR VEHICLE DRIVEABILITY CONCERNS

Possible Component	Reference/Action
253 - ELECTRICAL ROUTINE
Powertrain Control System
	Carry out Shift Point Road Test. Refer to SHIFT POINT ROAD TEST and carry out Torque Converter Operation Test. Refer to TORQUE CONVERTER DIAGNOSIS .
Electrical Inputs/Outputs, Vehicle Wiring Harnesses, Powertrain Control Module (PCM), TCC Solenoid, TP, OSS, MAF, IAT Sensors, Internal Wiring Harness	Run On-Board Diagnostic. Refer to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE for diagnosis. Go To PINPOINT TEST C: TORQUE CONVERTER CLUTCH (TCC) SOLENOID . Repair as required. Clear codes. Road test and rerun On-Board Diagnostic.
353 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Low Level	Adjust the fluid to the correct level.
Verify Correct Shift Scheduling, Engagements, Line Pressures and Stall Speed
	Go to the appropriate Diagnostic Routines Index.
Converter Clutch Always Applied
	Go to ROUTINE 341 .