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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 11-08-2012, 03:24 PM   #1 (permalink)
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wiring harness

Does anybody know were to get an engine wiring harness? Ford no longer sells them. Not having good luck finding a used one. Thanks for your help.
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2000 F250 crew cab long box
Banks exhaust, bighead, trancommand, boost gauge trans temp, pyrometer(post turbo)
Dp-Tuner 60& 80econ 60& 80 tow
Strictly diesel overboost annihilator
jobeperformance intake
dieselsite 203 t stat, coolant filter, evans coolant
38r with bank-bighead installed, diesel site non ebv flange international up-pipes coated, diesel site engine boot-kit, non-ebv pedestal
strictly diesel regulated fuel return kit 65psi.
new fuel bowl
CMF+ intake
isspro ev2 pyrometer(pre turbo), fuel pressure, coolant temp, HPOP gauge
1985 M1009 soon to be installed banks sidewinder turbo.
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Old 11-08-2012, 04:16 PM   #2 (permalink)
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eBay would be one place to try. I sold one there a while back. That or post a classified ad here on TDS. You need to be sure that the year at a minimum matches. I found out recently that there are differences in pinouts between the 99-01 and 02-03 engine harneses.

If yours isn't completely trashed, most of the connectors with pigtails are available that could be spliced into yours. You could even get a harness from most any Ford at a wrecking yard if the problem is with the big 4-pin connector and splice that in.
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First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version), AIS, coolant filter w/"hokum" bracket, regulated return, heated mirror mod, lighted cupholder, Marinco heater plug-in.

Hard or no-start? Check Here

Last edited by klhansen; 11-08-2012 at 04:18 PM.
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Old 11-08-2012, 07:49 PM   #3 (permalink)
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I just found out 99 is different from 02 I swapped engines And had to use my old harness. I have an extra '02 harness if that helps. Let me know
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Old 11-08-2012, 09:26 PM   #4 (permalink)
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there is people scrapping 99-00 over here in cochise co here in az. if you cannot find one let me know and i'll try to find thier ph ##'s. they are parting out the trucks, accidents.
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Old 11-09-2012, 10:28 AM   #5 (permalink)
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I found one for a 2002. Guy that is working on my truck is going to Ford to find out if it will work. My truck is a 2000 so I don't know if it will. Thanks everybody for your help. A side note the problem with the harness is it is shorting out and blowing #30 fuse. Got the harness fixed once and it shorted out within a month of getting fixed. Had 2 spots were it was shorted out before. Don't want to have it fixed and then have it short out again. I am afraid to go anywhere with it.
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2000 F250 crew cab long box
Banks exhaust, bighead, trancommand, boost gauge trans temp, pyrometer(post turbo)
Dp-Tuner 60& 80econ 60& 80 tow
Strictly diesel overboost annihilator
jobeperformance intake
dieselsite 203 t stat, coolant filter, evans coolant
38r with bank-bighead installed, diesel site non ebv flange international up-pipes coated, diesel site engine boot-kit, non-ebv pedestal
strictly diesel regulated fuel return kit 65psi.
new fuel bowl
CMF+ intake
isspro ev2 pyrometer(pre turbo), fuel pressure, coolant temp, HPOP gauge
1985 M1009 soon to be installed banks sidewinder turbo.
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Old 11-11-2012, 01:09 AM   #6 (permalink)
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Your problem may not be the harness at all. Fuse #30 powers the fuel heater as well as the PCM. The 99's and some 2000's came with a button type heater with a bus wire soldered to the buttons. If the wire comes loose and shorts against the mount, it'll blow fuse #30.

Pull the fuel filter and check the heater. You can temporarily fix it by simply pulling the fuel heater connector.

Here's some more info on the fuel heater.
Shorted fuel heater - fixed

Also an 02 harness will NOT work on your 2000. It messes up the charging circuit because of the mismatch on the 42 pin connector.
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First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version), AIS, coolant filter w/"hokum" bracket, regulated return, heated mirror mod, lighted cupholder, Marinco heater plug-in.

Hard or no-start? Check Here
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Old 11-11-2012, 08:09 AM   #7 (permalink)
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matthew,

like i mentioned before. the 02 harness wont work. between the 99,2000 and 02,03 they changed the pin location of the alternator wire. when i just replaced my 99 with an 02 engine i left the 02 harness thinking it would be fine. everything worked except the alternator wouldnt come on and charge the system. a couple of guys on this forum suggested that i put my original 99 harness on to solve the problem.

turns out, those were right. i did the swap and everything works great......so, a 00 harness IS different that an 02
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Old 11-12-2012, 04:25 PM   #8 (permalink)
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update: Got to check fuel filter heater. I'm 99.99% it is not that. The fuel filter housing is less than a year old. Thanks for the help. Going to get a wiring digram from ford and see how hard it will be to get the harness to work. (If it not to much work) Thanks for the help!
__________________
2000 F250 crew cab long box
Banks exhaust, bighead, trancommand, boost gauge trans temp, pyrometer(post turbo)
Dp-Tuner 60& 80econ 60& 80 tow
Strictly diesel overboost annihilator
jobeperformance intake
dieselsite 203 t stat, coolant filter, evans coolant
38r with bank-bighead installed, diesel site non ebv flange international up-pipes coated, diesel site engine boot-kit, non-ebv pedestal
strictly diesel regulated fuel return kit 65psi.
new fuel bowl
CMF+ intake
isspro ev2 pyrometer(pre turbo), fuel pressure, coolant temp, HPOP gauge
1985 M1009 soon to be installed banks sidewinder turbo.
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Old 11-12-2012, 05:35 PM   #9 (permalink)
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It's really not got anything to do with the housing, but the heater element itself (screws into the housing). There is a wire heating element that will break off it's mount and short out on the housing, blowing the #30 fuse.

As for the harness differences, all the critical items are correct. The injector circuits, ipr, icp, cps are correct. I know the circuit for the alternator IS on a different pin, so right off the bat, you won't be charging.
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99.5 PS CC 4x4 SRW ZF-6
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AE, Alldatadiy, and half a clue
- AKA "The Big White Truck"
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The first part to be thrown at these trucks should be a PSD compatible scanner

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