I'll get right to it. The truck is a '06 mega cab 5.9, with a 48re. It has a smarty touch, 4" exhaust, fass titanium, fuel bowl delete, cold air intake, and was told when I bought it that it had 60hp injectors.
The FCA and the wastegate solenoid have been replaced in the last 3,000 miles.
All mods were done before I bought it, and although I'm no stranger to turning a wrench now and then, this is my first diesel.
I have a feeling I need injectors, but want to make sure that's what I'm dealing with an not overlooking something else as the most likely culprit.
The symptoms are:
Rough idle, sometimes barely noticeable, most times very obvious. Seems at most times that it idles worse when at temp than cold. In one of the attached videos you can hear a little bit of the idle issue, but it doesn't show it at its worst by any means.
I have started hearing what I think may be "injector knock". It should be audible in the video im attaching.
Fuel economy is terrible, can't get it above 13-14 mpg on a mostly highway tank.
Injector balance on the smarty touch shows 1 injector significantly different than the rest. I am not entirely sure what its reading or what the values mean, or what it tells me, but I've read that readings like I'm getting aren't good.
My actual rail pressure seems to vary some from the commanded rail pressure, but I've been told that some variation is to be expected. This should be observable on the smarty touch screen in an attached video as well.
The highest rail pressure i get at WOT is roughly 23-24,000.
With the engine idling, if I touch each injector line (from the rail to the tube) I can feel a very distinct vibration, almost knocking feeling on the #1 (forward most) line, but not the other five lines.
These symptoms have remained consistent whether on a stock tune, or the 30hp tune I normally run from the smarty touch.
If any of you guys with more experience than I, are willing to give me some advice, or have any diagnostic ideas I may not have thought of, injectors or otherwise, I appreciate any help I can get.
The FCA and the wastegate solenoid have been replaced in the last 3,000 miles.
All mods were done before I bought it, and although I'm no stranger to turning a wrench now and then, this is my first diesel.
I have a feeling I need injectors, but want to make sure that's what I'm dealing with an not overlooking something else as the most likely culprit.
The symptoms are:
Rough idle, sometimes barely noticeable, most times very obvious. Seems at most times that it idles worse when at temp than cold. In one of the attached videos you can hear a little bit of the idle issue, but it doesn't show it at its worst by any means.
I have started hearing what I think may be "injector knock". It should be audible in the video im attaching.
Fuel economy is terrible, can't get it above 13-14 mpg on a mostly highway tank.
Injector balance on the smarty touch shows 1 injector significantly different than the rest. I am not entirely sure what its reading or what the values mean, or what it tells me, but I've read that readings like I'm getting aren't good.
My actual rail pressure seems to vary some from the commanded rail pressure, but I've been told that some variation is to be expected. This should be observable on the smarty touch screen in an attached video as well.
The highest rail pressure i get at WOT is roughly 23-24,000.
With the engine idling, if I touch each injector line (from the rail to the tube) I can feel a very distinct vibration, almost knocking feeling on the #1 (forward most) line, but not the other five lines.
These symptoms have remained consistent whether on a stock tune, or the 30hp tune I normally run from the smarty touch.
If any of you guys with more experience than I, are willing to give me some advice, or have any diagnostic ideas I may not have thought of, injectors or otherwise, I appreciate any help I can get.