For 1990-2009 cars

#### No Torque Converter Clutch (TCC) Apply

Checks | Causes
--- | ---
Valve Body Assembly (60) |

• | Regulator apply valve side loading

• | Stuck converter clutch valve

• | TCC apply valve stuck closed (debris in bore)

• | TCC/PWM solenoid broken/cracked

• | Turbine shaft O-ring omitted

• | TCC/PWM solenoid leaking

Input Housing and Turbine Shaft Assembly (621) |

• | Turbine shaft hole not drilled to full depth

• | Scratched turbine shaft journals

• | Turbine shaft O-ring omitted/damaged

• | Turbine shaft retainer and ball assembly restricted or damaged

Electrical |

• | 12 volts not supplied to transmission

• | Outside electrical connector damaged

• | Inside electrical connector damaged

• | Wire harness damaged

• | TCC solenoid damaged

• | Electrical short (pinched wire)

• | TCC solenoid not grounded

Torque Converter Clutch (1) | Internal damage (blue or distorted)
Oil Pump Assembly (4) |

• | TCC outer spring cocked

• | Orifice cup plug restricted or damaged

• | Pump to case gasket mispositioned

• | Converter clutch valve retaining ring mispositioned

• | Converter clutch valve stuck or assembled backwards

Transmission Fluid Pressure Manual Valve Position Switch (69) |

• | Contamination

• | Damaged seals

Solenoid Screen (367A/367B) | Blocked
TCC Solenoid Valve (Part of 66) | Internal damage
Engine Speed Sensor | Internal damage
Engine Coolant Temperature Sensor | Internal damage
Automatic Transmission Fluid Temperature Sensor (Part of 69) | Internal damage
Brake Switch | Internal damage
TCM | Internal damage
TCC PWM Solenoid (Part of 66) | Internal damage