OldBird: that's logic there!!! I had a SM; they come tOOOO often.

Guys: to save some time; I have thoroughly searched this board & others but can't find this.

I am looking for a sticky or etc. to give me pics or diagnosis of any part of the 7.3.
Looks like there should be a sticky on how to test parts w/pics; injectors, etc; I see one on GP's.

Any help?? Am I looking in the wrong place?

Tater

 

Well, it's not a sticky but it has all the information on diagnostics ...

97-15A 7.3L DI Turbo Workshop Manual

 

Hussler: thanks; will try to download; have snailup/dialup.

Rick & others: how do I ohm the injector while it is still in the head? Is that possible? Ohm Meter: Pos wire to injector wire; Neg to ground?

Thanks Tater
Will try the download, maybe I can find something there.

PS did a test with a light & also a hot wire to GP's all worked except one; get my harnesses & VC gaskets tomorrow; if rain holds off, will have the 250 humming by Friday.

 

If the UVCHes are connected to the injectors, you put the Pos probe on the injector terminal on the harness (second from outside) and the neg probe on the center (ground) terminal. If they're not, you just put one probe on each pin on the injector.

 

.......................

 

Maybe the 1994.5 diagram will help. Check the red lines on the gpr and other detials as needed.

 

Where is the IPR located at???

 

IPR location

 

DRRXR: the wiring diagram puts everything in perspective.


Thanks to all: raining today, so will be able to make more advancement Thurs-Sat.


Tater50

 

Update: As indicated that some of the wire harnesses were fried; so this portion needed to be replaced no matter what other problems existed.

Anyway: weather was permissive today; so began the process. Replaced harnesses & tried to start; same scenario, but that's OK.

I did not have the VC's attached cause I wanted to check oil distribution; turbo tube was not attached to VC; would that have made a difference?

Will proceed to remove fuel filter & clean & re-ORing & during the process will remove, clean & possibly replace IPR (have a spare on hand).

Looks like decent weather next week: will start pulling parts & doing the job.

Thanks for all the help
Tater50

 

My F550/6.0 had the same problems that the 250 has; so I removed the F550FICM & repaired it according to Dr Quad's info & it started right up.

My logic took over & I thought well, I got a running 350 that has an <ACRONYM title="Injector Driver Module">IDM</ACRONYM> that I can swap to the 250 & BINGO; started right up & purred like a <ACRONYM title="Catalytic Converter or Cat Rebel">cat</ACRONYM>.

Got it running; will locate an <ACRONYM title="Injector Driver Module">IDM</ACRONYM>.

The VC harnesses were necessary parts to replace anyway, since some were fried.

Thanks for all the help
Tater50

 

.....Cool...........

 

Good to hear