Torque Converter Clutch Concerns: Cycling/Shudder/Chatter

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

TORQUE CONVERTER CLUTCH CONCERNS: CYCLING/SHUDDER/CHATTER

Possible Component	Reference/Action
242 - ELECTRICAL ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, SSB and SSC.	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE for diagnosis and testing of the PCM. GO to PINPOINT TEST A . Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test.
342 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Condition.	Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION in this article.
Contaminated	If contaminated, locate source of contamination. If burnt, inspect mechanical bands and clutches. Repair as necessary.
Dirty fluid	Change the transaxle fluid. Carry out drain and refill. Refer to TRANSAXLE in this article. Carry out fluid cooler cleaning refer to TRANSAXLE-TRANSMISSION COOLING .
Contaminated torque converter	Clean torque converter, carry out torque flushing. Refer to TORQUE CONVERTER CONTAMINATION INSPECTION as listed in this article.
Main Control
Bolts not tightened to specification.	Tighten to specifications.
Separator plate damaged.	Inspect for damage. If damaged, repair as necessary.
Contamination.	Disassemble and clean.
Valves/springs damaged, misassembled, missing, stuck, or bore damaged.	If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage.
Torque Converter Assembly
Torque converter internal failure preventing engagement, piston application.	Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to the procedures in this article. If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter.