Hello,

I recently purchased a 92 g20 with about 90,000 miles on it.


When driving at speeds below 35 the ride is smooth. When I hit about 35-40 mph the van starts to shake at times. It feels almost as if I were driving over those little bumps that they put on the side of the road to alert sleeping drivers. Any idea what this could be? Please help because I need this van for work ASAP.

thank you

it might be your drive shaft.take it to see if it is balance

If it were my drive shaft wouldnt the problem be noticable all the time and not just when I'm going 45?

I had my trans changed and i bent the shaft while taking it out ,anyway i only got vibration at 45-55 mph then after that the vibration went away.i had the shaft balanced and had new u-joints install as well and now it ride like a caddy.the balance job was 150 bucks but well worth it

but u know it could be something as simple as bad tires,ball joints or tie rod ends

I took it to a nearby mechanic for a diagnosis and they said that it was something wrong with the engine, but they couldnt be sure exactly what under they hooked it up to the computer for $130. I'm not sure if I'm believing that.

I checked the U-joints and they appeared to be solid. There wasnt much play at all in there. I havent checked the ball joints or tie rod ends yet but I will. I don't really think that's what it is tho. It seems more to do with what gear I'm in but I could be wrong. Anyone else have any ideas?