I have a 2005 Cat TH460B that I've owned for about six years and has worked well for the most part but has had transmission related issues a fair bit. I had to replace the shift rail sensors about four years ago. For the last two and a half years it's had this problem of not going into gear at times, more so in spring and fall, but the last few weeks it's been really bad - almost daily. So far I've found nothing consistent with getting it going again except to wait. Sometime restarting a few times does it, sometimes not, other times just leaving the machine idling for a while does it. When I had the shift rail problem I was able to get the computer codes by cycling the key, but with this there are never any codes that come up. Just wondering if anyone here has had a problem like this or any experience with this?