Shudder During TCC Lockup
WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Possible cause: Poor TCC engagement due to either slippage because TCC piston is stuck or line pressure is low. Contaminated ATF, TCC piston slipped or burned, line pressure low, incorrect TP sensor signal, faulty VSS, faulty input/turbine speed sensor, faulty sensor ground, faulty TCC solenoid valve, faulty control valve body, faulty torque converter.