I'm posting this for a friend of mine. He's got a 03 with the 7.3. Used the truck as a daily driver up until a few weeks ago. Truck stayed parked (was running fine) for about two weeks in his garage. Got up one morning and cranked it, no problem, let it idle for a about ten minutes, no problem, pulled out of his garage and started down the driveway when all of the sudden motor lost all power. Long story short,,,,, he had a mechanic (another friend of mine) look at it yesterday. He said that four of his injectors are out, and need to be replaced. My question is " has anyone heard of four injectors going out at one time?" I trust my friend's (the mechanic) diagnostic's of the problem, but I've never heard of four at one time. Thanks for your replies!

 

time for another mechanic,probability of losing 4 injectors at the same time is slim to none at all

 

I'm with Ray on this one. The odds of 4 injectors failing at the same time is slim to none. I think you have better chances of being hit by a meteor. That being said... It sounds to me like it's the UVC harness. Assuming of course that all 4 failing injectors are on the same bank.

 

Did he happen to have the new and improved CPS put in this truck? If he did I'd look there first seems they are having some more problems with these things (wish I'd a kept my black one as a spare). Randy

 

It's either the wiring harness or the IDM that gave up the ghost.
All four injectors at once and on the same side????
Buy me a lottery ticket please!!!!!

 

I agree with Dan.

Don't hold that against him.

 

Ive seen more IDMs go lately than UVC... To be sure you can take the back cover off it, it will have water in it and smell burnt, if its not, you didnt lose anything just rtv the back of it back on.

 

Just some additional information: The mechanic that checked the truck is a Diesel Mechanic. I don't have the name of the software program he used (because it’s proprietary information to the public, I'm guessing from FORD) to trouble-shoot the Injector Issues, but the following is what I do have, someone might recognize these steps:


Engine Code: 1294 - P1294 - High Side Open Circuit Bank #2

according to the scanner it is the left bank(drivers side)

Software Program Trouble Shooting:

Step 20: Check the High Side Circuit For Voltage. These DTC's indicate an open in the high side circuit between the IDM and the fuel injector. THIS CHECKED GOOD.

Step 21: Check Injector Resistance: Turn ignition off. Install Glow Plug Adapter to suspect injector valve cover gasket connector. Use an Ohm Meter, measure resistance between high side and low side circuit terminals at glow plug injector adapter. If resistance is less than 5 ohms, fault may be intermittent. THIS CHECKED GOOD.

Step 22: Check For Open in Wiring Harness: Remove valve cover. Disconnect suspect injector harness connector. Use Ohm Meter, measure resistance between suspect injector harness connector and valve cover gasket connector. If resistance is less than 5 ohms, replace injector. Clear DTC and reset.(Cylinder 2,4,6,8 measured less than 5 ohms from the outside of the value cover to each one of the connectors)


Step 23: Determine Wiring Fault: Disconnect Valve Cover (UVC) wiring harness from connector at valve cover gasket. Use an Ohm Meter, measure resistance across each terminal in valve cover gasket connector. If all resistances are less than 5 ohms, connector is okay. Replace UVC wiring harness. Clear DTC and reset. If any resistance is 5 ohms or more, an open exists in connector. Replace valve cover gasket. Clear DTCs and reset. THIS CHECKED GOOD.

Step 24: Check High Side Circuit for Open: Turn ignition off. Disconnect IDM 40-pin connector. IDM is located on the left side of the engine compartment. Ensure both injector valve cover gasket connectors are disconnecting at cylinder bank with DTC. Use an Ohm Meter, measure resistance of the suspect high side circuit between IDM harness connector and terminal "E" at both suspect injector connectors. If both resistances are less than 5 ohms, fault may be intermittent. If either resistance is 5 ohms or more, locate and repair open in affected high side circuit. Clear DTC and reset. THIS CHECKED GOOD.


This is the best information I have to go on. After testing, he's determined the injectors (2, 4, 6, 8) were bad.

 

Just a bump

 

One good way to tell is to take the injectors out and have them bench tested. Talking to the International and Ford shops they say that 1 injector can fail. MAYBE 2. 4 at a time? Look elsewhere.

 

If he was a real ford mechanic he would have replaced every injector and the IDM on a whim by now.. (see steps 1 thru 19)

Sorry just had to throw that out there

Anyhow, the last 2 IDM's I seen fail had the same code, and were burnt up on the inside due to water/condensation.