7500 hours with no issues til this week. After morning warmup, (72 degree air temp) began moving forward and left track stopped momentarily, then started again, then repeated. Stopped the dozer then I began moving again normally to the fuel trailer. Shut down, fueled up, started up and it did it again probably a dozen times as i walked it to work area. Ran normal rest of the day. Checked codes. One code, "Right speed sensor, no response. TCU 908.7" No oil leaks, oil level correct, no odd sounds, no other codes. Random sensor failure or big troubles ahead? Thanks.
Most likely a sensor failing or a wiring issue to that sensor.
Thanks MG2361.