Golf Cart Loses Power or Speed DIY Fixes:Check the battery voltage and ensure they are fully charged. Inspect the batteries for any signs of damage or wear, such as bulging or leaking. Clean and tighten all battery connections. Examine the tires for proper inflation and alignment.

The two possible problems you can identify this way is either a bad speed controller, or a bad directional switch or motor. If the motor on your golf cart doesn’t turn, the problem is probably the directional switch/motor, but if there is no voltage at all on your reading, you’ll need to replace your speed controller.

Your golf cart may move very slowly as if it’s creeping along or it may move at an erratic speed. You may experience stuttering in your golf cart like when you have a bad battery or there is a low voltage problem. A broken or damaged magnet on the motor can result in a bad speed sensor.

A golf cart may be surging due to faulty batteries, faulty battery cables, or because the speed sensor connection has become loose. There are one or more bad batteries or battery cables. Check the battery pack voltage when the cart is stationary.