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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Automatic Transmission - 4L60-E/4L65-E (Troubleshooting)) >> Troubleshooting >> Torque Converter Clutch (TCC) Slip - 100 RPM Slip

Torque Converter Clutch (TCC) Slip - 100 RPM Slip

WARNING: This page is about a different variant/trim than selected.
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