No.16 Judder Upon Torque Converter Clutch (TCC) Operation

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION - DESCRIPTION AND POSSIBLE CAUSES

16	Judder upon torque converter clutch (TCC) operation
DESCRIPTION	Vehicle jolts when TCC engaged.
POSSIBLE CAUSE	Poor TCC engagement due to either slippage because TCC piston is stuck or line pressure is low. CAUTION: If the TCC or piston are stuck, inspect them. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF. Torque converter clutch piston slipped, burned Line pressure low Incorrect throttle position signal Malfunction of VSS Malfunction of input/turbine speed sensor Malfunction of sensor ground Malfunction of TCC solenoid valve Malfunction of control valve body Malfunction of torque converter NOTE: Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Judder upon torque converter clutch (TCC) operation

DESCRIPTION

Vehicle jolts when TCC engaged.

POSSIBLE CAUSE

Poor TCC engagement due to either slippage because TCC piston is stuck or line pressure is low.
CAUTION:
- If the TCC or piston are stuck, inspect them. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF.
- Torque converter clutch piston slipped, burned
  - Line pressure low
  - Incorrect throttle position signal
  - Malfunction of VSS
  - Malfunction of input/turbine speed sensor
  - Malfunction of sensor ground
  - Malfunction of TCC solenoid valve
  - Malfunction of control valve body
- Malfunction of torque converter
NOTE:
- Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.