I was turning into a driveway of a parking lot and heard a click and it got real sluggish when i was pressing the gas(felt like it was in 4Low) but the switch was on 2Hi. I came back out to leave about an hour later and immediately after starting the whole car jumped. Now as i was driving home the indicator light on the switch was going back to 4awd and back to 2Hi but there was no driving issues during the ride home. So when i parked i tried to cycle through the modes and when i tried to go2 4Hi to 4Lo the light blinked on 4Hi and never switched to 4Lo.