1998 Jeep Grand Cherokee Limited

Usually a jeep likes to idle at anywhere between 750 to 1000 rpms per minute if its too low the engine will cut off

Its not the idle, my jeep will run just fine but sometimes I can't let my foot off the gas because it will die, I have to continue to have my foot on the gas even to brake, its doesn't happen all of the time, just sometimes. My husband already checked the idle. It started doing this a couple of months ago it would only die when I would turn the steering wheel and go in reverse, now it just happens alot of the time while I am just driving without going in reverse or truning the will. Its very frustrating, thanks for the advice though!