I have a 97 Buick Le Sabre I was driving was diving one morning and the car was running fine, but when I stopped at a stop sign and tried to excelerate the car act as if it was going to stop but drove very sluggish for about 2 - 3 blocks and cut out. Had it towed home then I wouldn't do nothing about a week later went to try and start it would not start but when the key is turned on completely the engine turns but never catches battery is now drained from attempting to start. Please can anyone tell me what is going on?
Could be a hundred different things so you're going to be better off getting a mechanic involved. He will check for loss of spark, loss of fuel pressure, diagnostic fault codes leading to a defective sensor or wiring. Once the problem system is identified he will go through troubleshooting steps to determine the cause of the no-start.