A few days ago my "check engine" light came on, a day later the car started running very roughly and "chugs/bogs down" when accelerating. The car runs somewhat smoothly when idle, but as soon as I step on the gas, it has no power and I can feel that not every cylinder is firing. I did some research online and everything pointed to the Crankshaft Positioning Sensor (apparently its not uncommon for these things to go out on grand prix). So I replaced that. Did not even help with the problem. Now my car barely runs, the scan tool keeps providing the code "p0300- multiple cylinder misfires", and the temperature gauge barely reads, and the car runs hot. MY father and I are pretty car savvy, but we have NO IDEA what it could be. And i don't have the funds to have it towed to a shop and pay them to dink around for hours, while i pay them hundreds/thousands of dollars, or to replace everything under the hood myself. PLEASE HELP ME!!
Originally Posted by The Sunfire Guy
