Torque Converter Operation Concern: Cycling/Shudder/Chatter

WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.

TORQUE CONVERTER OPERATION CONCERN: CYCLING/SHUDDER/CHATTER SPECIFICATION

Possible Component	Reference/Action
235 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical inputs/outputs, vehicle wiring harnesses, transaxle control module (TCM), TCC, TFT sensor, internal wiring harness, OSS sensor.	Perform Torque Converter Clutch Operation Test as described under Road Test Vehicle. Run on-board diagnostic. Refer to SELF-DIAGNOSTICS for diagnosis.
335 - HYDRAULIC/MECHANICAL ROUTINE
Fluid condition	Prior to carrying out this action, make sure all electrical diagnostics have been performed. Inspect fluid condition. If burnt, drain fluid and refill. Bring vehicle to normal operating temperature. If condition still exists, continue diagnostics.
Improper Pressures
Low line pressure	Check line pressure. Perform Line Pressure and Stall Speed Tests. If not OK, check the main control valve body.
Main Control Valve Body
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate-damaged, off location	Inspect for damage. Install new components as necessary.
TCC solenoid not functioning properly	Inspect for operation. Install new components as necessary.
Turbine Shaft
Seals-damaged, missing	Inspect for damage. Install new components as necessary.
Pump Shaft
Seals damaged, missing	Inspect seals for damage. Install new components as necessary.
Torque Converter
-	Refer to TORQUE CONVERTER SERVICE AND REPLACEMENT .