2017 injector issues

[no12nv]

16 days ago truck thru cel ran rough no power shifted hard.. warranty  we go. Bad #8 injector.  300$ later all good last week same ****** even worse. . Took back same ****** bad # 3 , 5 ,6 20% less volume need replace aswell  #8 replace 30% over flow. $1000 later It runs smooth. But if I 2 foot it I rev out at the floor 1200rpm 0 break free burn out jus a dog. Cudnt pull boat up launch no balls even in 4x4. Is it my injectorS again or torque converter.. Truck used ta do a 1/4 mile break stand.. now I gotta have help pulling my 19ft boat up a ramp. Wtf.. I'm lost here.. Truck runs fine on streets but lacks the beast it used to be.. 2017 Silverado  5.3 CIA, borla exhaust.  21000 kms. Any and all input welcomed.. thanks guys..

[Colossus]

Run some fuel injector cleaner and carbon cleaner in the thing. 

[midwestdenaliguy]

If the cleaner doesn't do the trick, I wrote a how-to on replacing the injectors (assuming you're out of warranty). It drives me nuts when the dealer does all that work just to only replace 1 or 2 injectors. Everything is apart, just swap all injectors the first time instead of doing the job multiple times. If you want to test the TC theory, put the truck on tow/haul mode and it disengages the TC. If you still have the sluggish issue you know it's not that. 

 

Here's the injector how-to: