1996 Internationnal 4700 T444E in "limp mode"

Not sure of placement on a dump, but I am pretty familiar with the 7.3. The ECM is separate from the IDM (injector drive module). Have you looked up the codes yet? The high voltage sticker is for the IDM, it puts out 120vac, and it will knock you on your ##### if you mess around lol. I looked up the codes for ya; 111- ECM, no errors detected, flash code only. 135- APS/IVS signal disagree. 224- ?? 622- ECM, engine using default rating. 615- ??

I would really take some time to sit at a computer and do all the research you can. More than likely it's an easy fix, but a little time behind a laptop will save you lots of money at the stealership.

 

Dose it have a electronic gas peddle or your exhaust muffler is plugged up.

 

This is an old 3 box system. The ECM and IDM are separate. The IDM is mounted on the center of the fire wall. The ECM is mounted IN the firewall on the left hand side. Your 224, 622 and 615 are all ECM keep alive memory faults and internal ECM software faults. These are related to the ECM fuse blowing. I don't have my 444 books with me at home. I am going by memory here. I need to know which fuse is blowing, I believe there is one in the battery box and one in the fuse panel. The one in the fuse panel just goes to a relay at the firewall. The one at the batteries powers that same relay at the 30 terminal. If the battery relay is blowing you could just have a rubbed through wire shorting out. The ECM is behind that plastic cover at the left side of the firewall. If you disconnect the ECM connector, (big gray rectangular shape) and the fuse keeps blowing, then you just have a shorted wire somewhere. If it only blows with the ECM connected, I would say the ECM is pooched.

 

Hydroboost brake system has a nitrogen pressure assisted, electric motor backup. With key on, engine off and depressing the brake pedal, can you hear the eletric motor running? If not, motor could be shorted out. Don't get me to lying, but I want to think your brake pressure switch is mounted at the end of hydroboost cylinder towards firewall. Check wiring in that area and so forth, or disconnect switch and see if fuse quits blowing. Now this is going to sound weird, but a lot of wire shorting problems on those trucks were behind the r/s dash panel, relay area, especially in the hvac line zone. Too many floating green wires bouncing around on metal objects, LOL.

 

No worries, sorry I didn't have the best answer, but at least you know what the problem is. If your truck is anything like a F-350, the ECM should just be held to the firewall by your left foot, with a IIRC, 8mm bolt holding the connector on from the outside. Should only take about 10 minutes to remove.

 

Double check that the fuse only blows with the ECM connected. I would hate to see you buy an ECM if you don't need to, fuses are cheaper, LOL! Sorry, I do not know the part number. This is one of those parts you cannot return either, so make sure only the ECM is popping the fuse.

 

To much electronics in our lives... wounder what happened to simple and basic mechanical engine that never had any major problem and keep working threw thickand thin.