Manual:HUMMER Hummer H3 Base 2010Page:16379 / 37523



No Torque Converter Clutch Apply (300 RPM Slip) — 2010 Hummer H3 Base, Automatic Service Manual

No Torque Converter Clutch Apply (300 RPM Slip)

Checks Causes
Valve Body Assembly (60)
  • Regulator apply valve side loading
  • Stuck converter clutch valve
  • Torque converter clutch (TCC) apply valve stuck closed (debris in bore)
  • Torque converter clutch pulse width modulated (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 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 backward
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