misfiring

So I picked up a 98 park avenue ultra for 800 bucks after I got in an accident in my regal gs. the park ave was running real rough bad misfiring with a blinking check engine light. Coolant reservoir was just barely low when I checked it. topped it off, there was brown almost plastic looking...

Car started misfiring on the way to work, running really rough. Got codes P0204 and P0304, as well as the 'service traction control and service stabilitrak' messages. I checked the cylinder 4 injector with a noid light and the light is constantly on when the engine is running, the other...

Hello everyone, I drive a 1993 Buick Park avenue Ultra with roughly 153,000 miles on it, although it's almost entire in mint running and physical condition, I have a few annoying issues that I can't seem to shake. First off, and more importantly, I have a very small coolant leak. If I were to...