So, I have a 86 v6 auto. It was running fine, put gas in drove 5 miles parked. Later that night went to get food was fine, leaving food place the exit has a bit of height to it so it was about a 2 inch drop. kinda heard a bang didn't worry. At the stop light ahead I noticed the car was vibrating a bit harsh. While taking the girlfriend home, I noticed a loss of power about 10 minutes down the road, intense shaking and the noise was way of key.
I stopped at walmart grabbed some more oil, and some octane booster. but That wouldn't have made a huge difference instantly drove last half hour home but had no improvment. When I put it in park it ran normal. Odd, threw it in reverse and drive again and shook like crazy. Had girlfriend try it while I looked at engine, I noticed something interesting. Park engine sits normal, any other gear you see it slam up almost tilting but it sits realitvly still while in gear just a giant jump from park to any gear.
I'm thinking either an issue with tranny, or a broken mount but would a bad mount effect power, and sound?
sounds like a mount is loose or bad. As for the noise it may make one if it is loose enough. i wouldn't think it would effect performance but im not sure. Maybe someone else on here might have a better Idea.