Sputters like someone is feathering the accelerator. It's intermittent. Initially called it a "shift flare", then stated it's a "feature" and another said we know of the problem but don't know how to fix it. Current dealership replaced - spark plugs, throttle position censor, mass air flow censor, crank shaft sensor, 3 of the 6 coils, updated the control module numerous times. I have Chrysler Care Claim with "Star" people involved; getting me no where. Service manager has requested field engineer and has been denied until they can get a "flight recorder" installed and vehicle driven. Dealership can't find a "flight recorder" and if they do, no one has used this device at this dealership. Issue started at <20k miles and currently at 40k. I love my jeep but it's got to get fixed and GOT TO GO!