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Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Tue Mar 01, 2022 7:47 pm
by captainsdc
I’ll try that, going larger until it codes.
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Wed Mar 02, 2022 3:44 am
by usernames13
let us know how it works out for you
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Mon Mar 07, 2022 8:16 pm
by desertcoyote
usernames13 wrote: Tue Mar 01, 2022 7:45 pm
per previous post. If you live in the Phoenix Az area, i might be able to help.
Hi - I'm in the valley (east) and been trying to get my 2019 F350 to accept my 37" tires - no luck no matter what I do, can't get rid of the wrench. Have to go into dealer next week for oil change, any chance they can fix it?
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Tue Mar 08, 2022 2:50 pm
by usernames13
I can fix it. Give me a call 6023693222 if no answer leave msg and I'll get back to you
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Fri Aug 26, 2022 8:25 pm
by Kwieder
2019 F150. I don’t see the PID for rev/mile. Anyone else have this problem? I don’t have TCM only PCM, is that where others are finding it?
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Wed Aug 31, 2022 6:08 pm
by captainsdc
Rickloreto:
I am working on my new tire size issues with my new 2019F150ltd. One weird thing is with sometimes clunky shifting from 3-4. A ford tech told just me it would learn-out after getting used to my driving or he could do it for $120! So I walked. Now that learning doesn't seem to be happening. You mention clearing the adaptive learning tables after changing tires . What service procedure is it and do you know if it also clears the learned transmission data?
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Fri Oct 07, 2022 11:58 pm
by fordnick
captainsdc wrote: Wed Aug 31, 2022 6:08 pm
Rickloreto:
.... One weird thing is with sometimes clunky shifting from 3-4. ....
Sounds like a faulty shift solenoid. They can go bad because of particle buildup. Can't really be cleaned, need to replace the right one with the correctly tuned equivalent.
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Sat Oct 08, 2022 2:24 am
by captainsdc
I did a clear of the transmission tables and it seems to have nearly cleared the problem although I did notice the bump in shifting up from 3-4 yesterday. I guess I’ll call it 98% fixed abd see how it goes.
Re: P1635 or U0422 in TCM or PCM after tire size change
Posted: Wed Mar 13, 2024 8:22 pm
by Sloishbob
Hey sorry to beat a dead horse. Been poking around here looking to solve my problems with adjusting tire size maybe someone can point me in the wrong enough direction to fix it for me.
I have a 2012 f350 with the 6.7l
Gone through and adjusted tire size via circumfrence. All fine and dandy, except I have no option in config and programming for relearning the pcm. I see that due to the year on my truck there's no relearn for the tcm.
Any ideas are appreciated