Originally Posted by Jon4x4
I did work for ford and yes, by using ths ids and reflashing the pcm with ford, it will erase everything. We had the 6.4 and 6.0 reflashes andthe customer's complained because their tuners no longer worked haha
I love how many times I had customers at our GM dealers complain that when we had to reflash their PCM that they lost their superchip or whatever brand performance tune....Sorry, Dealerships gotta reflash to factory. lol.
That being said, I am reminded of when I was working at Jon Hall Chevy in Daytona beach several years ago. We had a guy come in with a big-block V8 and an Allison transmission with about 20k miles on it. Now GM hadn't had the Allison in their trucks for very long, and we were still not authorized to open them up yet. If there was an internal failure, the unit got replaced, and the original was sent back to them for inspection.
Well this guy comes in with a BADLY burned up transmission. No shifts, stuck in 3rd. I opened the hood and the first thing I noticed was this giant decal across the firewall that said "Superchips". Well I am not one to be an ass, so I went ahead and started checking things. Inspected the fluid and it was black as night and smelled something TERRIBLE.
The shop foreman comes over cause this was the first Allison failure we had seen and he was curious. Well he is a performance enthusiast (He had a tricked out Mustang) and he noticed the sticker. He points it out to me and I tell him that I saw it, but wanted to check things out first. So while I was checking the rest of the transmission (Pulling fluid samples) the customer came back with the manager. Our shop foreman asks the customer about the sticker and the customer admitted that he did buy a program for it, but that he did not have it in there but a few days, and didn't feel that it was responsible for the rapid failure, and that the check engine light came on shortly after the program was installed, and he brought it in to get that looked at as well.
So I pull the codes and I told the shop foreman that something was REALLY strange, because some of the codes that popped up were not codes for the Allison. So I pulled up the PCM software part number and we wrote it down and called Superchips. I just about fell over laughing when the Superchips rep said that they didn't even HAVE a program for the trucks with the Allison transmission! The customer, not realizing it, had bought a program for the Silverado with a 4L80E transmission, which is only a 4 speed, and not at ALL compatible with the Allison.
End of story is that the Customer had to pay for a replacement transmission to the tune of $7k just for the transmission plus install! (At that time the Allison was new, so replacement units were not cheap) In that $7k was the cost of reflashing the PCM back to factory, and the customer was told that he was to leave the factory programming in or future powertrain failures may not be covered by warranty. His dad was PISSED because he was the one who had to come down and pay for everything.