I have an 05 Jeep SE 4.0L 65k miles and at times when I’m reversing the vehicle will randomly accelerate. It did this one before when slowly going forward. I’d slowly hit the gas and then it had a sudden jolt cause the vehicle to accelerate (usually only happed in drive thrus.) That hasn’t happened recently until last week it now happens when I back into my driveway. I’ll press the gas pedal going into my driveway and then I’ll let off the gas but then sometimes the car will act as if I tapped the gas pedal again. Anyone ever experience this before? Should I be concerned?