I called WW Williams, an authorized Allison Dealer, in Phoenix about a delay shift problem on my Allison transmission installed in my Tiffin Phaeton motorhome from Pahrump, NV. Jim, the Service Manager, invited me to bring it in for a diagnostic check. Upon arrival several days later after completing my stay in Pahrump, Javier Carrara was assigned as my Service Advisor. A work order was written up for my specific problem. I mentioned to Javier that we live in our motorhome full time and I was assured that a service tech would be assigned asap. We left to have lunch somewhere close by. A few hours later, Javier contacted me to inform me that a software update was applied to the TCM (transmission control module) and that the service tech had driven it for about 7 miles and could not duplicate my problem. Since it was already in the shop, I requested a fluid and filter change, which was eventually performed. I was contacted by the evening shift service advisor, Jason, who indicated that our coach was ready. I requested a test drive with a service tech (Josh) to ensure the delay shift problem was resolved. Sure enough, shifted like butter now!! All it required was that software update to fix my shifting problem. Josh took the time during my test drive to explain the functions of the transmission and the shifting process which was a great help in understanding it from an owner's perspective.
This is a rather lengthy review but, to net it out, WW Williams resolved my shifting problem in a day allowing me to take possession of my home and continue my journey without requiring an over night stay in a hotel!! My thanks to all of the staff at WW Williams for the care, expertise and professionalism displayed and exhibited during my maintenance and repair procedures.
I would certainly not hesitate to have future work required on my Allison performed at WW Williams and would highly recommend them to others needing Allison transmission repair or maintenance. read more