2008 GMC Acadia 6T70

Complaint: P2723 sets when transmission is placed in drive with no forward movement, reverse is ok.

Cause: The 1,2,3,4 clutch piston was blown as well as the wave plate, causing no forward movement

Correction: Replace all the damaged parts in the clutch.

Part numbers related to the repair: NA

Year Make and Model of the Vehicle: 2008 GMC Acadia

Mileage: NA

Shop Name: Griffin Transmission

Transmission: 6T70E

Additional Notes: During diagnosis we had them remove the valve body and air check the 1,2,3,4 clutch and it would not hold. They then removed the unit and found the damaged clutch. Most likely the wave plate broke which caused the piston to over travel and damage it.

Pictures/Diagram: Included below.

Find thousands of Confirmed Fixes, Quick Reference Guides, Bulletins & Video Tutorials in the ATSG Member exclusive Tech Library along with unlimited calls into the tech hotline by joining ATSG today:


the fix

the fix