You can read my other thread to catch up on the specifics of this situation.
https://www.f150online.com/forums/sh...d.php?t=257248

So here are my basic questions:
1: Could my Superchips tuner have actually caused an issue like this to occur? (I am not knocking them. I love the tuner and it kills me to think I wont have one on there again)
2: What causes an injector to freeze/lock open?
3: What extent of damage can just the injector doing this cause?
Does it seem to be more to it than I am being told from the dealer or could the after effect of the injector freezing/locking (flooding the intake) open have actually caused all of the internal engine damage?
4: With a new engine getting put in, what type of break in will I have to go through?
5: Last but not least. Should I put a tuner back on it again or not? This one is more for opinions.
Thanks and I look forward to the replies.

 

Faulty injectors. Seen it lots of times. We did a shortblock in an '06 Mark LT with like 1300 miles on it not too long ago, #5 stuck and bent the connecting rod to the point where it'd hit the skirt of the block while the engine was idling. Expect to have fried catalytic converters as well.

 

i would take it easy for the first 5kish but definetly try to stay under 80 for the first 500 or so.

I dont see how a tuner would do that....
-Patrick

 

I "assume" that is something that the dealer will check. Or is this something that I will need to call them and say, "Hey, check the Cats".
I am beginning to think that they are semi-retarded ( thats why they are affectionately know to us as the TARDS ) there.

So from your statement on the injectors, is this a common issue with these trucks/engines? I know what I have read here for 6-7 years but.....

 

I remember this an it was the Seimens injectors causing it for some reason, so back to Bosch.

 

if a coil pack is out, the injector might still be shooting in gas, and if it is not firing, that might be becuase the cylinder is filled with gas. just a thought

 

the unburned fuel gets pushed out.. during the exhaust stroke..

 

I would use that warranty, just I remeber in the engine plant they had an issue out about this happening because of faulty injectors made by Seimens so they went back to Bosch. I've never said anything about my chip and they never ask, it should be a known issue needing no explanation so no worries.

 

if the super chip was faulty all of the injectors would have failed.

need to change oil since raw gas will leak past the rings-and Ford may owe you a cat

 

One question for you all. Why/what would have made the cats go bad? Granted all of the black smoke but what exactly would/could do it?
Here are a few pics of my truck in disassembly
BTW: They said they are replacing everything except the heads. They appear to be fine. Does this sound right? Could the heads have made it out with all of the other block damage incurred?
Also the mechanic said that FORD hooks up the wire (when they install remote starters) to the injector the same way and I should not worry about fixing it.
I am going to talk with the service manager or owner tomorrow to get some answers to my many questions since the service writer sucks ***.

THE WIRE HOOKED INTO THE INJECTOR THAT WAS IN QUESTION:


WHERE THE 5.4 "USED" TO BE.


MY BLOCK SITTING AN SOMEONES RIM???


MY HEADS THAT THEY SAY ARE GOOD???

 

When an injector sticks open, all that fuel has to go somewhere once its done its damage. If it happens upon start up, usually most of the fuel will wash the cylinder walls down and go into the crankcase. If an injector sticks while driving, or the truck is driven for a while with a stuck injector, most of the fuel will get dumped into the catalysts - which are at about 1400 degrees F when at operating temp - superheating the catalyst material and melting them down. This isn't 100%, mind you. I've had several '05+ 5.4 3Vs with stuck injectors that didn't damage the catalysts, but I've also had one that burned 'em up on both banks so badly that I had to tow the truck into the shop, it just had no power whatsoever from the exhaust restriction - it wouldn't make it across the parking lot under it's own power.

And yes, tying into the #1 injector connector is common for remote start systems. The remote starter module needs a reference to tell that the engine is running, it does this by looking at the injector pulse.

And no, there likely wasn't any damage to the heads. Short block replacements are common for this. If your dealer is trying to give you the run around, well, they suck, because this isn't an unheard of or uncommon situation.

 

I appreciate the reply and info Quintin. I am making a visit to the dealer this AM to chat w/someone over this whole ordeal. Maybe I can get some straight info.
My biggest concern is the service writer is making it sound like if this truck comes in again (God forbid) with a stuck injector and it happens to be this injector, or any other one, they will deny a warranty claim.
This is because that wire is still on the harness.
The mechanic calls B.S. on that.
Plus I am a little peeved on the run around last week on the warranty/no warranty issues.

 

I did that on the injector with a remote starter, and it caused misfires on my navigator. I ended up removing the damn remote starter and the misfires went away

 

most auto starters don't need the tach reference wire even hooked up. They use the increase in system voltage to know the alt is charging to tell the motor is running and you can program the auto start to use that. When I have on some older cars i used the ignition primary circuit, could be a safer choice? maybe, anyway that should not have done it but its always a possibility

 

Several things can cause a Hydro-loc. Stuck fuel injector, defective PCM, Defective wire harness or poor connection, Blown head gasket allowing coolant into a cyl when engine is off, and last but not least driving through water that is to deep and gets injested into the intake and then into a cylinder. You can have multiple injectors stick or injestion of water, coolant etc into several cyls and only have one cyl hydrolock. Everything has to be just right to hydrolock. You must get sufficent amounts of liquid into a cyl when it is on the compression stroke so the piston is actually trying to compress the liquid. The valves close and there is no where for the liquid to go so the rod bends.