Torque Converter Operation Concern: Cycling/Shudder/Chatter

WARNING: This page is about a different variant/trim than selected.

POSSIBLE COMPONENT REFERENCE CHART

Possible Component	Reference/Action
252 - ELECTRICAL ROUTINE
Powertrain Control System	Carry out Torque Converter Operation Test. Refer to TORQUE CONVERTER DIAGNOSIS in this service information. Run On-Board Diagnostic (OBD). Refer to INTRODUCTION article for diagnosis. Go to PINPOINT TEST A using the scan tool. Repair as required. Clear codes. Road test and rerun OBD .
Electrical inputs/outputs, vehicle wiring harnesses, PCM and Torque Converter Clutch (TCC) solenoid
Solenoid Body	Verify solenoid body strategy data stored in the PCM, download new identification and strategy as necessary. Refer to SOLENOID BODY STRATEGY in this service information.
Incorrect solenoid body strategy data stored in the PCM
352 - HYDRAULIC/MECHANICAL ROUTINE
Transmission fluid condition	Prior to carrying out this action, make sure all electrical diagnostics have been carried out. Inspect transmission fluid condition. If burnt, drain transmission fluid and converter. Install new transmission fluid and transmission fluid filter assembly. Bring vehicle to normal operating temperature. Carry out Transaxle Drive Cycle Test. Carry out OBD . If condition still exists, continue diagnostics.
Incorrect Pressures	Check pressure at pressure tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES in this service information. See the LINE PRESSURE CHART for specifications. If not OK, check Main Control. Refer to MAIN CONTROL VALVE BODY in this service information.
Line pressure
Main Controls
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate - damaged, off location	Inspect gaskets for damage. Repair as required.
TCC regulator valve, springs, clips - loose, stuck, binding, missing, misassembled	Inspect for damage. Repair or install new as required.
TCC control valve, springs, clips - loose, stuck, binding, missing, misassembled	Inspect for damage. Repair or install new as required.
TCC solenoid - not functioning correctly	Activate solenoid using scan tool. Refer to OUTPUT STATE CONTROL (OSC) MODE in this service information. Go to PINPOINT TEST A . Install a new solenoid as required. Refer to SOLENOIDS in this service information. Download a new solenoid body strategy into the PCM. Refer to SOLENOID BODY STRATEGY in this service information.
Turbine Shaft	Inspect for damage. Install new as required.
Seals - damaged, missing	Inspect for damage. Install new as required.
Torque Converter	Refer to TORQUE CONVERTER CONTAMINATION INSPECTION in this service information.
Torque converter damaged
Stator Support Assembly
Stator support assembly - worn, damaged	Inspect for damage. Install new as required.
Stator support seals - worn, damaged, leaking	Inspect for damage. Install new as required.