Swoop,

Thank you for the outstanding information. First off the truck is a manual steering truck. It use to auto guidance system, but was removed before we obtained it. I did take that into consideration with my troubleshooting. I found the auto system to not be an issue. Secondly, I did ohm out every wire in the mast cables. I read them at different lift heights and had no inconsistencies. I did not check the output signal of the encoder behind the steer wheel/tiller. One thing I did do though is disconnect that encoder and hooked up a new one I had on the shelf. I still had the same issue though. As far as the status of the steer module; I watched it as someone operated it and did not see the service light come on. I also checked all the connections associated with the steering on the distribution panel. I did not find any bad or loose connections there. And after reading the voltage output on each wire; it all corresponded to what the book was telling me. Unless I was misunderstanding it. But it does make sense that the poor connection could cause inconsistent revolutions of the hand wheel. I will have to check that again.

The truck does have a rubberized tire on it. All my other ones are poly. I will check the tire status on this as well.

Thanks for all the info. I will let you know what I find.