I'm actually betting stuck valves. Would tend to fit with the sludge I found in the rockers etc.

 

So, according to the RAVE, if I disconnect the coolant temp sensor, the system should set to default and run the truck that way plus toss a check engine light. If the Coolant sensor is indeed the problem, wouldn't this be a good test? Yes, I know... Ohm it... but I can't find my damn meter.

 

If the sensor IS bad then pulling the plug on it MAY make no difference...

-if it is a broken cirtuit (no continuity) then pulling the plug will make NO diff.

-IF it is just out of range (giving erroneous values) then is will make a difference.

With the sensor disconnected the ECM will default to a preset fueling mode and CEL will light.

 

Ok, so I'm pulling the inlet manifold so I can get to the fuel rail to put these injectors in..

1. What's the best way to break the seal? I doin't want to break the inlet and it seems pretty stuck...

2. I took out he 6 bolts securing the inlet manifold. 5 where totally clean, the drivers side front bolt was totally covered in oil. I'm guessing this might not be a good sign...

EDIT... not the inlet manifold... I was calling it the wrong name... anyways, I figured out how to separate it, suing a piece of 4x4 a mallet pry-bar. I see that there is no gasket... I'm guessing it just needs a thin coat of that red gasket seal stuff when I reassemble.

I have all the ford injectors installed now, and should have it buttoned back up tomorrow, I ran of of daylight and it was getting a little too cold to finish tonight.

That dirty front screw still bothers me as I don't really see any way it could have gotten all covered in oil to begin with. I hope this is not a sign of some deeper issue. The plugs are all fouled again from the last test run, but I'm not going to toss a new set in right away, I think I'll just carefully torch them and clean off the crap. If turns out that the issue was a stuck injector, I'll toss a new set in, but I'm getting tired of buying new sets of plugs for a couple miles of testing.

Since I have the plenum off again, I might as well take off the water jacket and clean it. It's something I mean to do the first time I had it off but forgot. I don't have a replacement gasket for it, but I should be able to use a liquid gasket for it I would think. Just have to see what condition the original one is in when I pull it apart.

Schools still out on the temp sensor, as I can't find my Ohm meter for the life of me. I have it disconnected for the time being and will just let the system go into default.

More tomorrow!

 

Well, todays the day I finally get to test again.

I finished getting the engine all back together last night after putting in the new injectors but, I had to wait 24 hours for the gasket stuff to totally cure. Yes I cheated and used the high temp red stuff to make a few gaskets but I have never had an issue in the past.

So, It gets turned over again today and I'll know if gas is going to come shooting out all over the place or if I actually put the injectors in correctly and if they are in correctly if this has fixed the over fueling.

Oh and I found my Ohm meter, so I'll give the other sensors a look also.

Hmm. Started right up, ran and idles great. Still very rich. The injectors seems to be a part of the issue but not the whole issue.

Noticed something else. I have a lot of (steam) coming out of the hose that goes from the valve cover to the plenum beside the IACV. I'm wondering now if there might be an internal coolant leak. I'm going to limp it into the shop today and finally get the answer and figure out if this engine is even worth going any further with.

 

what was the best way to depressurize the fuel system...i got my injectors in too and im kind of dumb founded on that

 

All I did was push the button in the valve and had a rag there to catch any fuel. Seemed to work like a charm.

 

Ok, I was actually able to drive the truck over to a shop an hour away. Missing and running rich the whole way, but did 70 and got me there. Literally took half a tank of gas to drive the 50 miles.

He's got the test Book and will have a look over the truck and finally see what the issue is so I can either fix it or swap engines.

 

And you still have not done a resistance test on the temp sensors??????????

I would have made sure that was done prior to ripping the old injectors out.

 

I found my ohm meter, but could not figure out how to read it. It's at the shop now. I still have a feeling the engine is toast.