GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Yukon XL - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Case Extension Bearing/Seal Failed

Checks

Cause

Orifice Plate

The hole is blocked or the hole is missing.

Case Extension (19)

The lube passages are blocked or missing.