Hammer40

Hello, I recently purchased a 2018 F150 and added 285/65/20's and want to get the speedometer adjusted to be more accurate. I figured since the tire is very close to the Raptor diameter, the service department could flash it for me like they did on my 2010. Is that still possible on the 2018's? I asked them and they didn't even know. I scheduled an appointment for next Friday for them to try but I don't want to waste my time if it's no longer possible.

I don't believe I'm computer literate enough to use FORESCAN but I would more than happy to pay a fellow forum member in the Seattle/Tacoma area rather than Ford to help.

Thanks,
-Jeff

Tom HAYDEN

iTrader: (1)

Im in Tampa so cant help you but I assure you when a fellow Fscanner reads this help will be offered. Maybe repost "Forscan Help In Seattle"

Harry Franklin

No, the ability for the dealer to do this ended with 2015 trucks. Forscan will make the change, but will more than likely store a trouble code. This won't turn on the check engine light and won't cause any other issues, but it will likely be there. The only way anyone would know is by pulling the codes. The other option is the superchips flashpaq. It costs about $200 but gets the job done a bit better than forscan.

Hammer40

tvsjr

I believe there are steps now to eliminate that DTC after Forscan. Plus, it's not exactly a secret... when you roll in to your dealer with bigger wheels and tires, he's not going to need to pull the DTCs to know you reprogrammed a tire size.

And, there are so many more things you can do with Forscan...

wgotthardt

I used the new(ish) Rough Country QuickCal gps speedometer calibrator on my '15 4X4 (leveled and 33's), less costly than Hypertech, and really easy/fast, worked great!

http://www.roughcountry.com/quickcal...or-90001b.html

Harry Franklin

The hypertech requires removing the instrument cluster to plug it in. The Superchips is a flash update through the OBD.

Livnitup

FORScan is your best bet and lots of guys who were intimidated at first find out it's not that hard. All you need to do is follow the steps in the tutorial and if you have any questions you can post in the FORScan thread or pm me directly for help. I've also helped a few guys and done it remotely for them with TeamViewer. Anyways, the choice is yours but here's a link to the tutorial if you want to give it a shot: https://docs.google.com/document/d/1...gF1wxIqxY/edit

Hammer40

XRSphil

The rough country unit does not work on 2018's with the 10 speed trans, I emailed to ask when it would be available and they said to ETA has been set.