Troubleshooting and Fixing Your Kenworth Speedo

If you've spent any real time behind the wheel of a T680 or a classic W900, you know how annoying it is when your kenworth speedo starts bouncing around or just dies completely. It usually happens at the worst possible time—maybe right as you're passing a weigh station or cruising through a speed trap in a small town you've never been through before. Suddenly, you're flying blind, trying to gauge your speed by matching the RPMs or just following the guy in the right lane and hoping he's not doing 15 over. ...

April 22, 2026 · 7 min · Martell Lottenburger