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 |
|
