Are the new trucks coming with the C wires?
7.3L spark plug/coil wire failure
- OP 🔹 Stonegrey20
- Start date
Yes, my 22 that I picked up late last September has the C wires.
Good to know. I was going to look at mine after work today. Picked up December of last year so I’d assume mine has the same “C” wires.
What would be a good code reader to leave in the truck for just this purpose?
Thinking I should keep a couple wires and a code reader on hand just in case.
Thinking I should keep a couple wires and a code reader on hand just in case.
- Jan 14, 2021
- 1,010
- 2,601
- USAF Retired
- 21 F250 7.3l Platinum Tremor, Lithium Gray
- 04 Ram 3500, 1150 rwhp, almost stock
Yep. That's what I do and it's paid off.
A B or C? Can anyone identify my wires?
Edit: researching some more and the final letter “B” seems to be my answer. The pictures seem to match what is sold online as the “B” revision. Wondering how this is possible if @torino420 got his in September of ‘21 and mine was a December ‘21. Didn’t have any big delays in build or transport. Not like it sat at the racetrack for 6 months. Interested to see what feedback you guys have.
Edit: researching some more and the final letter “B” seems to be my answer. The pictures seem to match what is sold online as the “B” revision. Wondering how this is possible if @torino420 got his in September of ‘21 and mine was a December ‘21. Didn’t have any big delays in build or transport. Not like it sat at the racetrack for 6 months. Interested to see what feedback you guys have.
Last edited:
LC3Z-12286-C
Right. So have they started putting these wires in the newer 7.3’s? If so, trying to figure out when.
i'm not sure. but here is a pic of the new ones from an rv forum.
the new one is the one with the bigger heat shield (bottom)
Attachments
And mine don’t match either of those. I see the “LB” part on that picture you posted and mine are “MB”. My metal insulators also have a raised tab at the top of the 90 degree bend. Maybe there were multiple “B” versions created before the “C” versions arrived. Or possibly just a different part for the motor homes vs our trucks.
interesting.
i was under the impression that the motorhome and truck engines used the same wires
the dealer parts department should be able to tell you which wires your truck was built with
Went ahead and ordered a set of the "C" wires today as backups. I haven't noticed any issues with the originals but you don't want to get stranded out on a trip.
Rock Auto has them under the Motorcraft part #WR6167 for $12.18 each.
Rock Auto has them under the Motorcraft part #WR6167 for $12.18 each.
Dam
Damn, my 2022 that was delivered in april has both types. just checked and i have been experercing "the smell" and stubbling from redlights. stop signs, ect. on occasion .
Going forward, do you think aftermarket headers would be better or worse.?
- Staff 🛡️
- #95
- Jun 25, 2021
- 11,008
- 20,655
- 22MY F250 Star White Lariat Tremor
- 22MY Winnebago Voyage 2831RB
I have the OBD MX+. Bluetooth is fine for this but I also have the wired EX which I use for Forscan:
OBDLink MX+
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- Staff 🛡️
- #96
- Jun 25, 2021
- 11,008
- 20,655
- 22MY F250 Star White Lariat Tremor
- 22MY Winnebago Voyage 2831RB
"LB" and "MB" are suffixes from engineering part numbers. They can both exist in production at the same time. The first letter of the suffix indicates usage with a different function, design, application. The second letter always supercedes the previous. An MB superceding an MA, for instance. MB doesn't necessarily supercede LB, though... Note that the service part numbers and engineering part numbers don't always match. Service part numbers only have one digit, start with "A" and increment any time a new release is required. So "C" just designates it is on the second revision for service.
My truck also has MBs and was built last August...
Always good info @Modman. Thanks for the explanation!
What code reader are people using?
See comment #95 above. This is a very good and reliable code reader, either version.
