ac4068
New member
I have a new/used GC2400. This morning I plowed snow for the first time after the Nor'easter. Everything is functioning normally with the exception of the tach. The machine has 130 hours on it, 30 of them mine. Never noticed any issues. The tachometer worked fine and then started sporadically jumping up and down from where it was supposed to be to pinned at the max. The RPM's remained constant at what I suspect was about 2500 rpm's. Even backing off the throttle didn't completely solve the problem. I also notice a slight change in engine noise when the needle pins. It's a subtle change. Almost a bit of a whine.
The only modification I made to the tractor was adding some front and rear facing work lights. The lights are wired to the battery with their own inline fuse and switch and grounded to the chassis. They work perfectly. The tach problem is present regardless of whether the lights are on or not.
I have checked the wire connections and the tach cable. Wire connections seem good. Tach cable seems fine but I don't know where it goes after it leaves the instrument cluster. All other gauges seem to be functioning normally.
Any suggestions would be appreciated!
The only modification I made to the tractor was adding some front and rear facing work lights. The lights are wired to the battery with their own inline fuse and switch and grounded to the chassis. They work perfectly. The tach problem is present regardless of whether the lights are on or not.
I have checked the wire connections and the tach cable. Wire connections seem good. Tach cable seems fine but I don't know where it goes after it leaves the instrument cluster. All other gauges seem to be functioning normally.
Any suggestions would be appreciated!