My jeep also has another problem 99 jeep grand cherokee the front and rear windshield wipers work but the front is the only one that will srapy wiper fluid, now i can hear the motor running so im wondering if someting is clogged. when i first started not working i could pull the switch bag and hold it then it would slowly come out and work for a little while. So im thinking its either that or the front has a different pump than the back and its gone out