Have had a few regen carts but first series cart. 2002 6 seater. New battery pack and new MCOR installed before I bought it 6 months ago. Suddenly the accelerator won't disengage when not in use. Cart moves slowly on its own unless brake is depressed or key is turned Off or in neutral. I thought it may be an MCOR issue but noticed last night that the forward/reverse switch arced when switching to forward and the cables were hot and smelled coming from the switch. Anyone know if I only need a new heavy duty switch or is it more severe? Thanks in advance.