Yukon XL 4WD V8-6.0L (2007)
Valve Body: Customer Interest
A/T - 6L80 Busy Shifting/MIL ON/DTC P1751 Set
Bulletin No.: 07-07-30-002
Date: January 30, 2007
TECHNICAL
Subject:
6L80 Automatic Transmission Busy Shifting, MIL Illuminated, DTC P1751 Set (Replace Control Valve Body Spacer Plate)
Models:
2006 Cadillac XLR-V, STS-V
2006 Chevrolet Corvette
2007 Cadillac Escalade, Escalade ESV, Escalade EXT
2007 GMC Yukon Denali, Yukon Denali XL
with 6L80 (RPO MYC) Automatic Transmission
Condition
Some customers may comment on busy or frequent up and down shifts in 3rd, 4th, 5th or 6th gear at approximately 48-80 km/h (30-50 mph). The MIL
may also be illuminated and a DTC P1751 stored in the TCM.
Cause
This condition may be caused by an undersized hole or debris in the control valve body spacer plate (305).
Correction
