We had our truck having issues and took it to W.W. Williams for it to be fixed. They Charged us almost $4,000 to get "the problem" fixed. NOT even 2 months after getting the truck back, it was already having the same issue! Being as it was still covered under warranty, both parts and labor, we took it back there. After a few days, I called up there and the guy told me that they had to send our truck to Detroit Motors to have them look at it. They brought it back and told them to perform ATD checklist and a low temperature regen. And that it was going to cost us almost another $1,000. When asked why we were having to pay for the same problem they didn't fix in the first they gave us excuse that it wasn't covered. We went to go pick up the truck and have someone else take a look at it, and they wouldn't release the truck back to us until we paid $275 for a diagnostic test; which they also said they FOUND Nothing! Needless to say, they will never have our service! read more