× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Allison 25-11 code
Posted to HD/Fleet Forum on 2/5/2020

I've had a couple of issues with a 2554 that came back to the ignition switch, another time was low charging voltage. Wires on the switch get real hot, you may see a melted connector or burned terminal. The intermittent connection makes the trans go crazy. Login to read more.