injector timing-2017 Ram 2500 auto trans.

[Dave Cain]

My 2017 2500 started shuttering/vibrating upon acceleration through 3 gear. The dealer plugged it up and determined it was the injector timing on the #2 cylinder. The injector was replaced. GREAT results for about 50 miles. The same shuttering/vibration occurred again. Back to the dealership and now its cylinder #4.
the question : Is this mechanical or electronic? the injectors going bad? the high pressure pump faulty or is it a computer/chip error ? THANKS for your help, direction and advise!

 

[AH64ID]

Timing is controlled electronically, but a bad injector could have a longer delay and retard the timing to the point of improper combustion.

 

[sag2]

I would have them pull the FCA and a good fuel sample and look for contamination. What is the filter change history? And if they are really saying injector timing is off you might find a different dealer.