No Torque Converter Clutch Apply. GMC Truck Yukon XL Denali 2008

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon XL Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 6L50/6L80/6L90 🢒 No Torque Converter Clutch Apply

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 TCC control valve (227) and spring (226).

•	Inspect for damaged stator shaft.

Control Valve Lower Body Assembly (307)

Inspect for worn, damaged, or sticking torque converter clutch (TCC) regulator apply valve (355).

4-5-6 (with Turbine Shaft) Clutch Assembly (56)

•	Inspect for damaged turbine shaft.

•	Inspect for damaged turbine shaft O-ring seal.