Hello,

I have a mystery vibration in my '95 Accord LX, manual transmission.

First thing when I start my car it is smooth. It idles smooth and there is no engine slamming when I take off. About 10 minutes after warming up, I get the car on the freeway and after about 5 minutes at 60mph I start to get a vibration. It is present only when accelerating, and it gets worse when going up hill. When doing 60 I can push the clutch in, but keep the RPM's up, and the vibration goes away. The sound is more of a dud...dud...dud...dud... and it's speed is in relation to how fast I am going. It does not matter what gear I am in it stays the same speed. When I curve right it diminishes, curving left causes it to dud...dud...dud... even more. When I slow down and stop at a light, it goes away for a minute but comes back when I do over 40 mph.

I do have video of the sound. Not sure the best way to put it on here.

It is coming from the passenger side. I have rotated the tires, the tires are almost new, they are balanced and no bubble. The wheel hub bearing is not making any noise. My CV boots are all in tact with no tears.

Can this issue be cause by my motor/trans mounts being bad?

Thanks.

 

Most likely a bad passenger side axle. The reason the noise disperses when you clutch in is because the load of the engine is removed.

 

Would this happen intermittently or occur all the time? Would it only happen at high speeds or happen at slower speeds once the car has been on road for 20 minutes?

 

I think the passenger bearing is suspect. When you curve right, it puts more weight and load to Thebes bearing, and when left, the ps.