Join Date: May 2017
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So this is an interesting story ...
First, I applaud all your efforts. Very few people are patient enough to do everything you did ... Many times ... And to no avail. So good on you for that.
About your problems ... I'll offer a few tips.
#1: Injectors: When changing injectors, always always always lubricate the fuel-sealing O-Rings (the large ones on the body of the injector) before you put them in. I use engine assembly lube because it's thick and doesn't run. You can use some engine oil, a little grease, whatever but I would use assembly lube cause it stays right where you put it.
#2: Injector crush washer: Double check the crush washer ... I've seen it probably a dozen times where someone changes the injectors or reseals their injectors and they somehow have 2 crush washers on one injector ... Don't do that.
#3 Hydrolock: yes, you could have bent a rod or done some damage to the rings ... In fact, there's almost certainly some damage to the cylinder that locked, but probably not enough to be a big deal. There might be some tiny ring deflection or something, but the Pistons are quite strong in the 6.0 and pretty hard to ruin, even by locking the motor.
#4 Diagnosis - it seems you have some access to a scanner to see what your truck is doing, but I don't think you're using the scanner to its potential. If the truck has a problem, be SURE that you find the problem BEFORE spending any money on parts. For example, I've never, ever, ever seen a motor (gas, diesel, or alcohol) grenade all of its injectors simultaneously under normal operation. High boost and nitrous, sure, but under normal operation there's no way. If you need an injector, you will see it on a contribution test!! Finding out you need injectors for sure is alot cheaper than a set of 8 for no reason.
#5: White smoke: I would pull the injectors again. Grab seal kits, because they're cheap, and change them very carefully. Lubricate the O-Rings and make sure you have only 1 crush washer on each. If you can get your hands on a bore scope, look down into the cylinders for damage or in case the old washer is still somehow stuck in the bore on the "1mm higher than the others" injector. If your truck has a catalytic, yes it will take a little while to clear the white smoke.
#6 Hydrolock pt2: If any motor is ever flooded, you must must must change the engine oil. Fuel will leak down past the rings and contaminate the oil. Fuel cleans oil off parts. You don't want that. Change your oil and filter before driving the piss out of anything.
#7: What would I do? : Reseal the injectors as mentioned very carefully and change the engine oil. Then run a contribution test to see if you have any injectors behaving badly. If so, we chase those cylinders. Swap injectors between good cylinders and bad ones, do the test again. If the problem follows the injectors, you know that the base engine is OK. If it doesn't, you've bent something (but probably not). If you've found that some injectors are no good, hope that the salesman never sees this post and try to get them to warranty them. Reinstall and you should be fine. If all injectors are OK and you still have problems, I would start chasing down a turbo problem. Black smoke usually means lots of fuel, not enough boost. White smoke is WAY too much fuel, boost or not.
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