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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 155 (Automatic Transmission - 6L50/6L80/6L90 - Service, Diagnosis & Troubleshooting) >> No Torque Converter Clutch Release

No Torque Converter Clutch Release

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
No Torque Converter Clutch Release

Checks Causes
Torque Converter Assembly (1) Diagnose torque converter for possible internal damage.
Fluid Pump Cover Assembly (219)
  • Inspect for worn, damaged, or sticking converter feed limit valve (220) and spring (221).
  • Inspect for worn, damaged, or sticking torque converter clutch (TCC) control valve (227) and spring (226).
Control Valve Lower Body Assembly (307) Inspect for worn, damaged, or sticking TCC regulator apply valve (355).