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Read articles →This is a real-time DIY diagnosis of a 4044M that lost forward/reverse with a crankshaft position sensor error code. The owner pulls the sensor, finds a cracked brass tip, replaces it himself with a $89 Bosch part, but the fix doesn't resolve the actual problem, it turns out to be a damaged dampener behind the flywheel requiring a month at the dealer and ~30 hours labor. Useful for owners facing this exact error code, showing both the sensor R&R process and the costly failure mode it can mask.
Posted by the Eric | East Texas Homestead channel, an owner-operator documenting his own hands-on troubleshooting and repair attempts on his tractor.
The sensor isn't reading the crankshaft properly, so the computer won't allow the tractor to move, even though hydraulics still work.
Not necessarily. The owner replaced the cracked sensor but the tractor still wouldn't move; the actual cause was a damaged dampener behind the flywheel.
It required about a month at the dealer and nearly 30 hours of labor; John Deere covered the parts due to a suspected known issue, but labor was still expensive.
