Usually when that happens it is a lck of pump pressure. You get a slight delay and then BAM!!! So depending on your miles a fluid and filter change or go to the shop and have it flushed. On newer like yours it will throw a code when the sensors are baad you should have a low and high speed sensoe along with a vehicle speed sensor (speedo only). If you can't do it your self take it to the shop.
89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.
AF Jeep Club Tail #184