I am a new owner of a 2004 Suzuka Blue Metallic with 31000 miles on it. The car runs great, but I have some vibration. It is fine in 1st and 2nd gear, but in 3rd, 4th, and 5th, starting at about 4000 the engine/car start to vibrate. It almost feels like I am driving over some of the rumble strips in the road letting you know you're comming up to a stop sign. Lower than 4000 it is runs smooth. I was wondering if anyone has any idea what could cause that? Could it be something wrong with the transmission or clutch. I do not know the previous owner other than they drove the car a lot to get that many miles in 1 yr. I tend to think that it is not a tire or wheel problem do to the fact that once you shift to the next gear, the vibration goes away until it reaches 4000rpms again. If anyone has any ideas what could cause this, please respond. I do not want to take it to the dealer to have them look it over if this is normal or something simple that could be causing it.

All replies appreciated.

Swamibob

 

Inspect your engine mounts. They are fluid filled. Maybe you have a bad one. This car also has a weighted crank pulley that acts as a vibration damper. Have a look at it to see if it's stock. Inspect all the belt driven accessories as one may be loose.

 

 

Aw, come on, old buddy. Where have you been? Like the diff mounts, the engine mounts have some sort of reddish oil inside.

It's number 4 in this picture:
http://www.hondaautomotiveparts.com/auto/j...y5=ENGINE+MOUNT

 

i had the same problem when i bought my car. my car would vibrate when i pass 40 mph. it ended up being a blown cv boot...maybe you should check it out.

 

Wouldn't hurt to check them, but it's not likely that's what it is in this case. His car does it at the same rpm in any gear, which means there is no specific road speed that it does it. His is dependent upon rpm (engine speed) not road speed.

 

I didn't know that. Does the oil dampen the movement of the mount's somehow?

 

I believe they act like little shock absorbers. I guess Honda decided this car needed something a little less rigid than solid rubber mounts in those 2 places.

 

I will check the engine mounts. Where is the CV boot that you are talking about for me to look at, the boot near the rear tires I guess? Does anyone have a theory why it is not felt in 1st or 2nd gear because it seems like to me if it is the engine vibration at the same rpm it would happen in all gears. I was thinking it might have has something to do with the engine being under a higher load in the higher gears. You guys don't think it could be the clutch when it gets under a heavier load or if it was the clutch would it just start to slip? When your CV joint was messed up, did it vibrate through a speed range or an rpm range because when if shift and it gets under 4000 again it goes away until it gets back to 4000.

Swami

 

There are 4 of them on the 1/2 shafts that drive the rear wheels.
This is entirely possible.
Does it do this when just "coasting" (not accelerating or decelerating)? If it still does it, it's not likely the clutch.
The most common symptom of bad CVs is a severe vibration that can be felt throughout the whole car when accelerating.