The word "sticky" is a misnomer... As long as a cam lobe is pushing the up and a spring is pushing them down thay cannot stick! If is is quiet now the problem was a bit of GUNK in the lifter valve..
Sometimes wear causes one or more lifters to make a continous clicking sound. In the case of a jeep engine the cure is to purchase a slightly LONGER push rod for that lifter. YES mopar makes these longer push rods just for that purpose.
Those lifters that make startup noise and then shutup are BLEEDING off the oil when the engine is not running.. not to worry about them.
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />