Yeah, you are right, Brother, it wouldn't kill the engine mid-run. What about loss of oil though, in the HPOP reservoir?

 

OK, I called the mechanic myself, and he said the GPR is something they have to check and it's on some checklist, etc, and agreed it would not make the truck shut down. We talked about the injector, and he said he doesn't know why it's open - mechanical or computer - but the first thing he does when the computer tells him injector #2 (or #8) is check the wiring harness,w hich he said is fine. He says fuel pressure is good, so can't be the screens.

The one thing he didn't check is the IPR sensor. I asked him to do that and then call me back. I read one thread here though where the IPR looked good, but in the end it was the problem, and the guy had the exact same issues as us.

 

I am sorry that I missed the part about the oil being low...


These trucks have a built in (on purpose or accident) fail safe as to not let the motor 'melt down' do to the lack of oil. These trucks hold 15 qts of oil and in order for the injectors to 'fire' there must be oil pressure to 'open' the injectors. If the oil level falls to far (I have had mine 8ts low and it would not start until I filled it up) it will not have enough oil for the High pressure oil pump. Which in a way is a good thing as it will save your engine from total failure. One of the enjectors may have an o-ring malfuctions (Dealer says it is 'open'... I questions that?) that is letting a lot of oil by pass the seal and being burned off.

the gpr needs fixed... so I guess go with it as you are not in a position to do anything else where you are.

I was hoping more members would chime in.

 

Brother Les, I was hoping for more input too, but maybe it's lunchtime.

Well, this last time we had trouble, the oil gauge showed full, and I figure that if the oil is full, the HPOP reservoir would also be full since it's an "open system".
Correct? So I think your first logical assumption was right.

 

You are doing your home work and we salute you for that. stay on that mechanic. one bad enjector will not make the truck not run. Did he try the plug inside the valve cover and make sure it is tight?

 

Has the tech ruled out the CPS?

 

Did they try a new CPS? Of course they wouldn't make a boatload of $$ if it's something that simple.

 

You are right to check the IPR sensor and I am told that the tin nut on the back of it will back off and cause this problem. You do not need to spend that much money on an issue that the 'computer' is showing (install a new injector) when is something a lot easier and cheaper to do.

I know there are more knowledgeable people here on the forum, so keep bumping it up.

I am sorry but I have to go for the day as it is on 5:00 here.

good luck

 

Thanks, Brother Les!

Yes, they told my husband they checked the CPS, but if they are relying on computer info only, that has me bothered.
Will see what they say here in a few minutes, and bring up the tin nut.
The IPR makes sense to me..

 

I'd like to know HOW they concluded it is an injector.

The oil loss and hard start are plausible since loss of HPO pressure will make it hard to start.

Unfortunately, $900 is prolly what Ford will get for this work. A brand new injector from Alliant is at least $250 (they may charge 2x that though ) and they will charge whatever the 'book' calls for in labor... FWIW, I changed all (8) injectors 'at camp' here a couple months ago - took about 4-5hrs labor.

I hate that y'all are gonna have to spend your way out of this. It seems odd to me to have an injector failure the way yours has gone out. I'd make it very, very clear to stealership they had better fix the problem for this $900 investment (they betta be EXTRA sure they know whats wrong!). As for the other guy, it doesn't hurt to try!! My Mom quit taking credit cards for her rental cabins - she's had a few people rent from her over the years and 'disputed' the charge. The CC companys always tend to side with the consumer and she never did get her $$...

One more thing, a GOOD 7.3 diesel tech is pretty rare at dealerships as far as I can tell. They have a very detailed 'manual' that tells them what to do if they get XXXX code and then what to do next, and so on. If you had an AE or similar and that manual (I have one) - you would literally be as qualified to diagnose and fix your truck as they are. I mean no disrespect to the many TRUE mechanics that are still 'walking on concrete' out there - but my dealer experiences have ALL been poor. Nowadays, a dealer tech may not see a 7.3 for months depending on what part of the country they are in - not like the average active FTE member, who likely knows waaaaaaay more about 7.3's than the tech I just described!

 

You may be on the right track with the IPR. I have not had issues with mine but that is where to go now.

From what I recall, I think the readings of the #2/#8 may be false reading and have nothing to do with the injectors as a prblem..

type in member 'Kwickordead', I think he may have the answers for you.

good luck.

Let us know what you find.

 

I read it in someones sig " The biggest threat to a powerstroke is a Ford tech "

 

Brother, I did a search on that username, and it's finding it invalid. I'm really curious now.

I find it interesting the mechanic hasn't called me back yet. We'll have to call him if he doesn't call in 10 minutes.

 

I hope this one is a smart one.

 

Me too, still saying a little prayer for ya'll & the children.