For some time, every once in a while the cart would not move when I stopped, of just took my foot off the pedal. After a few pumps, it would start. Finally it just stopped as I was driving. and won't move. I jumped the solenoid and it moves. A friend that rebuilds carts had a spare 48v Club car solenoid and the local dealership said it should work, so I put it on, along with a new big resister and it still won't move, but will when I jump the solenoid. Other than a new solenoid, is there any other possible cause?