Two problems related to engine and engine cooling have been reported for the 1999 Buick Park Avenue. The most recently reported issues are listed below.
I was driving my car and it started to misfire. I put it on the machine and got a few different codes p1406 and p0300 got those fixed it worked fine. A week later the problem came back. It sat up for a few weeks and when I would drive it I smelled gas fumes. Now it won't turn and there's still a smell of fuel.
The consumer states that his wife started the vehicle and the engine blew. The noise sounded as if a bomb went off. There was a large hole on top of the engine. The dealer said that they didn't know why this happened. The consumer also replaced all four tire due to vibration. Scc.