[ShepHol]

I work at a S. Mich golf course and have a similar problem with 8 of our 121 2000/2001 Club Car DS carts. The easiest way to explain it is that it feels like a belt drive vehicle with belt slipping. Terrain and grass/pavement are not a factor. I pulled the motors out and checked the splined shaft but not the rubber grommet that is mentioned in other posts. I have switched out the motor with a known good one and the problem persisted. I have also run all diagnostic test from the service manual and still have not solved the problem. I wil check the grommet but does anyone have any other suggestions. These are regen carts by the way.