For 1990-2009 cars

#### Soft TCC Apply (Shudder)

Checks | Cause
--- | ---
DEFINITION: An unacceptably long TCC apply occurs in third or fourth gear, Drive or Manual Third range, with the throttle held steady. This can cause a momentary rapid jerking sensation in the vehicle during the TCC apply.
Control Valve Body Assembly |

• | The TCC regulator apply valve (327) is stuck or binding.

• | The TCC regulator apply valve spring (326) is missing or damaged.

• | The control valve body spacer plate gaskets assembly (396) are misassembled or contain incorrect parts.

• | TCC control valve stuck or binding.

• | TCC control valve spring is missing or damaged.

• | TCC PWM solenoid faulty.

Case Cover Assembly | The TCC blowoff ball valve (420B) or the spring (418) is damaged or is not seating.
Turbine Shaft Assembly |

• | The turbine shaft O-ring seal (520) is damaged or is missing.

• | The turbine shaft oil seal rings (513, 519) are damaged or missing.

• | The turbine shaft (518) is damaged.

Drive Sprocket Support Assembly | The turbine shaft bushing (523) is worn or damaged.
Torque Converter Assembly |

• | The torque converter bushing is worn or damaged

• | The torque converter cover surface is damaged under lug thread(s) due to the flexplate bolt bottoms out.

• | The torque converter is damaged internally

- | The TCC friction material is missing or damaged

- | The TCC plate is distorted or damaged

- | The torque converter internal O-ring seal is missing or damaged