ECM ordering problem
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Junior User
Joined: Feb 2004
Posts: 67
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From: Everett, WA
ECM ordering problem
What I have: '88 F350 7.5 Liter 460 EFI 3 Spd Auto
So I fried my ECM and need a new one. Here's the situation...
Mechanic says he can't locate one and for me to see what I can find. So I call the local NAPA and give them the number off the existing ECM. Only problem is, the one I have apparently came off a 90-93. So I say just give me the one that is supposed to go on my truck. They can't, they need the numbers off of it.
Okay... I call up the dealership to find out what that number would be. Maybe they can run my VIN and tell me what should be in there. Nope, they can't.
I ask them what they would do if I had brought my truck in for a new ECM and he had no idea what they would do.
I haven't had any luck finding a match at my local salvage yards so I ended up having it sent out to be rebuilt.
Not too big of a deal, but it would be real nice to have what is supposed to be in there. I mean, 90-93 might have slightly different fuel management codes or something, I have no idea.
Has anyone ran into a problem of getting an exact match ECM? And how did you resolve this?
Thanks in advance.
So I fried my ECM and need a new one. Here's the situation...
Mechanic says he can't locate one and for me to see what I can find. So I call the local NAPA and give them the number off the existing ECM. Only problem is, the one I have apparently came off a 90-93. So I say just give me the one that is supposed to go on my truck. They can't, they need the numbers off of it.
Okay... I call up the dealership to find out what that number would be. Maybe they can run my VIN and tell me what should be in there. Nope, they can't.
I ask them what they would do if I had brought my truck in for a new ECM and he had no idea what they would do.
I haven't had any luck finding a match at my local salvage yards so I ended up having it sent out to be rebuilt.
Not too big of a deal, but it would be real nice to have what is supposed to be in there. I mean, 90-93 might have slightly different fuel management codes or something, I have no idea.
Has anyone ran into a problem of getting an exact match ECM? And how did you resolve this?
Thanks in advance.
Fleet Owner
Joined: Oct 2005
Posts: 20,784
Likes: 1,751
From: Kentucky
Look on the door jamb for the Calibration sticker. It may also be under the hood somewhere. It should look something like 7-98A-R00, 7-98A-R10, 8-98A-R02 (7.5L Federal emission w/C6). Once you have that number the factory PCM can be determined.
I use a combination of motorcraftservice.com and a cross-reference table from Standard Motor Products to figure out which PCM should be a vehicle.
I use a combination of motorcraftservice.com and a cross-reference table from Standard Motor Products to figure out which PCM should be a vehicle.
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