I have a 96 48 Volt cart that jerks (loses power intermittently,then regains it). It runs OK on pavement but as soon as I hit any bumps it will jerk. I have load tested my new batteries (jacked up cart and tested each one for voltage drops, all within .01 V of each other, while depressing throttle). I have removed and cleaned every connection, bats, motor,solenoid, controller. I removed the potentiometer and found the big black wire had a wear spot on the protective covering, thought I had it fixed but I was wrong. Tested micro switch in potentiometer for continuity while shaking it(simulating bumps.... I'm desperate) and it was fine. Being that rough terrain seems to trigger this issue I keep thinking its a wire or something. When I had the cart jacked up I tapped on the controller to try and trigger the jerking but couldn't, any help would be greatly appreciated before I start switching out $500 parts only to find out it doesn't help! Thanks!!
GO HARD or GO HOME!!