1998 Buick Lesabre Engine Stopped Running

While driving the engine check light came on and engine started to run poorly. No problems before now, car always ran great. The light blinked at first and now stays on. I restarted the engine a few times to see if the light went off, it didn't. I noted the temp gauge jumped to a hotter reading when I was checking the light. I checked the water and it was low. I refilled the system and started the engine again; it ran better for a few seconds and started lopping and jumping at the idler pulley and died. It wants start at all now. Want even turn over. It acts like the battery is down but I jumped it off and it still want turn over.