Used 2024 2024 Duramax Problems. If you recall, gale did a series called. Used idash and found code p122d related to the intake throttle valve.

Although the upgrades from the lml vastly improved the new l5p duramax engine, a few common problems have cropped up since its debut. General motors has announced a customer satisfaction program (n232427750) addressing an issue with the piston oil lubrication valve in certain 2024 model year chevrolet silverado 2500hd/3500hd and gmc sierra.