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Hi guys. First post here on the Ford board. I have a friend with a 99 Super Duty, diesel pickup. Interior lights and whatnot went nuts on him. Dealership tells us its the GEM module that has failed.
The OE GEM module for this truck is not available directly through Ford at the time. Checking the OE number with Cardone, their part is send the original in for R&R. The Ford part # on the module itself is F81Z-14B205-BB
My question is, can a different GEM module with a different model number be substituted in place of the original? Does the GEM module itself have to be reprogrammed to match, or "link" to the pickup?
Is the part # you listed the part number off the GEM that is currently in the truck? Because that part number is a service part, which means it has been replaced before.
A replacement GEM doesn't necessarily have to have the same part number as the one it is replacing. But you should be able to find somewhere in the documentation that the GEM is a replacement for the superseded part.
It is my understanding that the GEM can be replaced with another unit but it may need to be re-programmed first. If it were me, I would first fix the leak at the base of the windshield since that is what usually causes GEM issues....then I'd find a donor truck at a salvage yard that was a similar trim model and use that module. It might work without needing any re-programming.
id remove his stock one and write down the number and try ebay, when we got one for my dads 2000 crew cab diesel F350 the dealer said the one he had was on back order from FORD! No date on a restock, so we went on ebay and got one for under 200 dollars. If not a salvage yard
Is the part # you listed the part number off the GEM that is currently in the truck? Because that part number is a service part, which means it has been replaced before.
A replacement GEM doesn't necessarily have to have the same part number as the one it is replacing. But you should be able to find somewhere in the documentation that the GEM is a replacement for the superseded part.
Way back when, Ford issued a voluntary recall to replace the GEM on all 1999 F-250 diesel trucks so they should probably all have "service part" replacements. I do not remember if it included F-350s and up or 2000 year models.
Sorry for the zombie thread revival but I thought it might be important to someone's part search in the future.
Way back when, Ford issued a voluntary recall to replace the GEM on all 1999 F-250 diesel trucks so they should probably all have "service part" replacements. I do not remember if it included F-350s and up or 2000 year models.
Sorry for the zombie thread revival but I thought it might be important to someone's part search in the future.
No problem, this is exactly what I am checking into now for my e99 F350
It looks like I may have to replace the GEM Module but still hesitating and trying to figure out if and how a new module need to be re-programmed.
No problem, this is exactly what I am checking into now for my e99 F350
It looks like I may have to replace the GEM Module but still hesitating and trying to figure out if and how a new module need to be re-programmed.
IE. can it be done with laptop & Forscan?
Yes, It should be possible with Forscan. I just replaced the GEM module in my 2000 Excurison with a used one from Ebay.
I saved the current GEM configuration to my laptop, replaced the bad GEM module with the used one, and then uploaded the saved config file to the used module. Worked perfect.
Even though the used GEM had the identical part number as my current one they were not programmed the same. For instance, the 4x4 did not work with the new (used) GEM until I reprogrammed it. Reprogramming with Forscan fixed that.
I replaced the GEM last week and reset DTC's and believe the remaining six are all due to the "new" GEM being programmed for 99 F-model truck with electronically selectable transfer case, unlike my manual transfer case F350 (AT).
All functions seem to work fine now.
IE.
PW, Power Door Locks etc., and until I put on more highway miles in order to check speedometer etc. I think it's best to leave it as is, and not try to reprogram the "new" GEM with as-built configuration.
PS.
Before replacing the original GEM, the truck had a whole bunch error codes as can be seen below, but most everything except ABS and Cruise Control was still working fine.
"New" GEM, Feb 15, 2024:
Original GEM, April 8, 2022:
This thread has been very helpful, thank you guys!
Hi guys. First post here on the Ford board. I have a friend with a 99 Super Duty, diesel pickup. Interior lights and whatnot went nuts on him. Dealership tells us its the GEM module that has failed.
The OE GEM module for this truck is not available directly through Ford at the time. Checking the OE number with Cardone, their part is send the original in for R&R. The Ford part # on the module itself is F81Z-14B205-BB
My question is, can a different GEM module with a different model number be substituted in place of the original? Does the GEM module itself have to be reprogrammed to match, or "link" to the pickup?
Any input is appreciated guys.
Regards,
Brendan
fstfwrd
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Sorry to revive old thread but what about ur connectors did u find a third on bc my s.o. took out the bem.and not myself and I swear video said there was three connector but I'd be damn if I'm find a third wk d it driving me crazy. It a 00 f350 crew cab with 4x4 . Has zero response t ok throttle and I've gone down the list and here I am.i swear there was three now I am.finding only two am I losing my mind? Please help before I set this think on fire
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