No. 15 Judder Upon TCC Operation: Notes

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

JUDDER UPON TCC OPERATION - DESCRIPTION & POSSIBLE CAUSE

15	Judder upon TCC operation
DESCRIPTION	Vehicle jolts when TCC is engaged.
POSSIBLE CAUSE	Poor torque converter clutch engagement due to slippage because either the TCC piston is stuck or the line pressure is low. NOTE: 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. TCC piston slippage, burning Line pressure is low Mis-adjustment of throttle position sensor malfunction Output speed sensor malfunction Input/turbine speed sensor malfunction Sensor ground malfunction TCC solenoid valve malfunction Control valve body malfunction Torque converter malfunction NOTE: Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.

Judder upon TCC operation

DESCRIPTION

Vehicle jolts when TCC is engaged.

POSSIBLE CAUSE

Poor torque converter clutch engagement due to slippage because either the TCC piston is stuck or the line pressure is low.
NOTE:
- 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.
1. TCC piston slippage, burning
  - Line pressure is low
  - Mis-adjustment of throttle position sensor malfunction
  - Output speed sensor malfunction
  - Input/turbine speed sensor malfunction
  - Sensor ground malfunction
  - TCC solenoid valve malfunction
  - Control valve body malfunction
2. Torque converter malfunction
  NOTE:
  - Before following the troubleshooting steps, make sure that the on-board diagnosis and basic inspection have been conducted.