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Home >> Hummer >> 2008 >> H3 Adventure, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> Torque Converter Clutch Slip - 100 RPM Slip

Torque Converter Clutch Slip - 100 RPM Slip

TCC Slip (100 RPM)

Checks Causes
Valve Body Assembly (60)
  • TCC/PWM solenoid leaks
  • Regulator apply valve or converter clutch shift valve sticking or side loading
Oil Pump Assembly (4)
  • Stator shaft bushings worn, due to scratched turbine shaft journal (replace bushings and input housing assembly)
  • TCC apply valve is stuck open
  • TCC solenoid leaking
Input Housing and Turbine Shaft Assembly (621)
  • Scratched journal on turbine shaft
  • Turbine shaft O-ring cut
  • Turbine shaft hole not drilled to full depth