Location of VIN on 7.3 Powerstroke engine - Ford Powerstroke Diesel Forum
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Old 08-18-2013, 04:30 PM
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Location of VIN on 7.3 Powerstroke engine

I just picked up a rough 2002 F-350. Barely running, told codes had been pulled indicating #2 injector problems,but they were cleared. Started by running checks through the IDM harness to the injectors, all checked good. Have pulled all injectors, and was surprised to find six of them AA code, one AD code, and #8 AE code. (All heavy carbon on end, many bad o-rings, etc) I thought AD (1-7) and AE (8) should be correct for this year. Five the AA code do not have any reman markings, while one does, as do the AD and AE marked injectors. Wondering if there is any sane reason someone would mix injectors like this in an '02, or if the engine really is an '02. Valve cover says it, but I'd like something better to go off of. Anyone help in where I should start scraping caked oil off to find VIN on engine (or serial number, etc.)

Thanks in advance!
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Old 08-18-2013, 04:42 PM
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I think it's stamped above the oil filter


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Old 08-18-2013, 05:03 PM
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yup, the engine number and the trucks last 6 of the vin is on the flat spot above the filter.
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Old 08-18-2013, 06:04 PM
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They may or may not have. But it is possible they just swapped the coil on top. The only way to be sure is to have it flow tested/taken apart and compare the guts. Probably not really worth it unless you have a shop local that can do it though.

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Old 08-18-2013, 06:13 PM
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They may or may not have. But it is possible they just swapped the coil on top. The only way to be sure is to have it flow tested/taken apart and compare the guts. Probably not really worth it unless you have a shop local that can do it though.
Chances are that's what they did. AD is a split shot and AA is a single shot. If they were AA's to run right you would need different tuning. Its very noticeable at idle. It would lope pretty hard.

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Old 08-19-2013, 11:37 AM
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Thanks to all. HUCorey, previous owner reported and my 5 seconds of run before tearing into was indeed a very bad lope. Able to get an engine number, but the VIN verification by the oil filter/cooler mount was eaten away by rust. Engine number 7.4 JU2UI725330. The "U"s may indeed be "V"s...they are both identical.
Heads have the following numbers cast right above the top of the valve cover...Left: 2-2 (big space) 1825113C1 (big space) 0117H
Right head: 2-1 (big space) 1825113C1 (big space) 0119H
My guess is the first and last series of numbers on heads are machining.fit codes and cast date/plant codes.
Local dealer attempting very hard to help, but unsuccessful so far.
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Old 08-19-2013, 02:23 PM
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AD code injectors are stock for that year and an AE in cylinder 8.

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