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Archived 3rd Gen, Injectors, cleaned them, put together, miss, smoke, throttle sticking!...

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I need some help, I followed some instructions on how to remove the injectors, take them apart and clean them. I did this put truck back together, started it up, had a bit of a rough idle.



Not excessive smoke that I could tell. Not bad, but also had a bit of a knock to it.



Drove it to work, came back home, tore it apart, to double check everything.



Double checked #3 injector, feed tube torque, etc, that was the one I just started with to see what would happen. Took injector back out, back apart, cleaned reassembled, etc.



Put it back together, started up truck, smooth for a few mins, no smoke, anything. Running good, until... . Drove it around the block, was doing just fine, no knock or anything, until I hit the throttle a little to get it up to speed 55MPH, started feeling a miss, especially, when torque converter locked up. Throttle began to stick!, had to shift into neutral to slow it down. Smoking black smoke pretty thick.



Once in neutral RPM's came down normal put back in gear, hit the gas 1/2 throttle, throttle doesn't stick but get the knock still.



Hit the throttle with moderate pressure, it sticks at around 1600-1800 RPMs shift to neutral, back down to regular RPM's.



Got back into driveway, rough idle especially in gear.

Truck was running worse than previous day.

Took apart the entire top part of rest of injectors, and checked, all working good (the part under the solenoid).



Has knock almost does sound like diesel running on fumes, or starting fluid.



I have no idea what to do next, almost ran into my garage with that throttle sticking. sheesh. Take out the other injectors and try to clean them again to make sure?



**update, took two of the other injectors out tonight, did a test run, still the same. Got just a couple more to try.



Anything I am missing here, something else I should try? Dirt get somewhere maybe, making something stick? I am just frustrated, don't know what to do next.
 
I can comment on the new electronic injectors. however in my past I was a diesel mechanic and spent my time in the fuel injection room doing pumps and injectors. I cannot believe you can take injectors apart without special tool,and test equipment and expect them to work. we had clean rooms with filtered air,filtered fuel supply,special tools to take apartand put together clean the small holes in the tip. even with all that and lots of expierence doing it I still had injectors that would dribble on the test stand. all the best with it but I would think you would need them serviced buy a shop that specalized in fuel injection.

I would not even think of taking my injectors apart without the proper equipment.
 
I don't think i'd run it anymore until I got the injectors checked/replaced. From the knock and smoke you describe, you could easy end up with a burnt piston and have a lot more problems than you do now.



Good luck,



Dave
 
Don't you have an electronic throttle? i. e. , no cable. I'm not sure how injectors could make a throttle stick, either way. If , in fact, you do have an electronic throttle you might need to check those sensors.
 
First question would be why did you take them apart? What was the problem that made you want to tear into them? Perhaps it's still contributing to what's going on now.



When you had them apart, did you do each injector individually or did you take them all apart and lay them out on the bench?
 
The clearances and tolerances in these common rail injectors are not something that you can measure with you ordinary tools. I agree, if you had a problem or issue in the first place, most likely taking them apart and cleaning them is not going to do any good. You need to have them flow tested and operationally tested to make sure that they are within spec and working correctly. Definatly sound like you have a hanging injector.
 
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