GMC: 2014: Sierra 2500 HD WT, 2D Pickup, 6.0L Eng VIN B, 4WD, Trans Mfr CD 6L90-E/MYD, CNG
This is a LEMON manual, retrieved in 2025.
Repair and Diagnosis
Repair and Diagnosis, all links on one page (may load slowly, but easier to search)
Labor Times
Download .zip for offline use