2019 Ford F-650 Sd

Driver reported an intermittent odor of burning oil or hot brakes from rear wheels. Found rear axle wheel seal leaking gear oil; brake pads soaked, and gear oil pooling in wheel. This could compromise braking, and neglecting the leak would cause damage to the rear differential or cause the rear differential to lock up. Took to Ford dealer, who confirmed wheel seal leak & also found leaking pinion seal on steering. Repaired under warranty.

I was driving down the road when the engine suddenly quit. There was no brake assist and no steering assist. I stopped in the middle of the road and could not restart the vehicle. The engine would not crank. There was no transmission gear indicator on the dashboard (likely no CAN-BUS communication with the transmission control module). Eventually I found a loose large-diameter power cable that was loose at the front of the fusebox under the hood, located on the driver-side wheel well. I tightened up the nut that holds this large cable to the stud of the fusebox, and the transmission gear indicator returned. After that, the truck started and drove correctly. Apparently this nut was never tightened at the factory, creating a safety issue.