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Vibration @ high speed? Need help

10K views 57 replies 24 participants last post by  Mandidy  
#1 ·
Lately, I notice that when I hit 80mph, the front end started to vibrate. If I release the gas pedal, the vibration will disappear. It feels like the car has a flat tire or the alignment is off. However, this vibration is NOT coming up all the time. Mostly, at night. At day time, it doesn't vibrate at all, even with that speed or faster. It only appears when I was on the freeway. On the street road, it rides smoothly.

My mechanic test said that it MAY be motor mounts, but not sure. I think is my drive sided axle, which is the original axle. My Legend is 1994 with 85k miles. Will that axle last that long? Also, how long the motor/tranny mounts will last? What do u think?
 
#52 ·
kcarmack said:
I have listened to many people with this problem. My car did the exact same thing everybody talk about. I replaced brakes, tires, rotors, axles, everything with no luck... until my mechanic suggested the torque converter. I took my car ro Aamco, sure enough the solenoid for the converter was bad. Had it replaced... runs smooth now. Transmission guy said converter was not unlocking right causing it to bind up. That was causing the shutter. Hope this helps everybody.
How much did that converter repair cost?
 
#53 ·
chupper said:
Alright legend, and anyone else with this problem now or in the future...

Here is the run down:

Last week on Wednesday I noticed a slight vibration during acceleration on the tollway. It was only at high speeds. After arriving at my destination for a brief meeting and returning to the car, I noticed the problem again on the tollway coming back to the office, but with much more intensity.

The problem continued until I had the car's tires replaced and wheels balanced (on Friday). My wife drove to my work (about 15 miles) right after the car was serviced. She got it up to 75mph with NO vibrations. She picked me up, I drove home and for about 10 miles I also felt NO virations (I went up to about 78mph). But, right before getting off, I felt the vibrations again after getting through some stop and go traffic.

The next Tuesday the dealership looked at the car again and said the INNER passenger side CV axle lost all of its oil and was broken. They didn't have the part, so we had to return on Wednesday (yesterday).

They replaced the inner CV axle. (took a few hours and cost $545) My wife came to pick me up, no vibrations. I drove home from work, no vibrations. I drove back to work this morning (Thursday), no vibrations.

So, bottom line, right now it looks like that was my problem. The vibrations were intermittent, which can make it hard to diagnose and hard to tell if its actually been fixed.

As an extra: I've noticed that with two people riding in the car (one on the passenger side with more pressure on that CV) seems to help the vibrations come back.

Well, that's everything I have now. I'm pretty sure the vibrations are gone and that was the culprit, as I've a lot of miles on the car without any further problems.
Iam glad your problem was resolved. thank you for updating us on teh situation.

I have one major comment: I have not known any "inner cv joint" to have any oil in it!!!!
So unless you or the stealer is referring to something else, the stealer may have changed something else.

When you felt the vibrations before, were they when you accelarsted hard only or on all accelration modes (assuming you were not accelarating form a standstill)?

In our cars, teh inner CV joint is connected to teh outer CV joint, and it is usually more cost effective to replace the whole half shaft (remanned ones are $ 65.00 each) as oppose to unpacking the inner one, replacing and packing it, and putting it back.

If your problem were not resolve by now, I would have suggested motor mounts. My rationale is that when you are accelarating normally, there is no excessive load on teh engine and the mounts, yet when you "punch it" say form 50 or 60mph, teh engine kicks down, and loads teh drivetrain an dteh mounts with excessive load, and if teh mounts are bad, then you will get vibrations. Just an idea.

Thanks
Q
 
#54 ·
I still have the same symptoms that chupper had. I have not had the time or money to change one of the cv axels. My mechanic looked at them before and said he saw nothing wrong with them. Also he did not feel the symptoms b/c it quit doing it on the way to the shop. (just my luck) This has been the case 2 different times. When it's doing it bad...I will run by the mechanic and when he rides with me, it won't do it for anything. Anyway, I told him what it had been doing and that I thought it had to be in the axels by the way it's feeling. He told me to bring it back and we would change what ever side I wanted to try first. This is just a guessing game and that can be costly. I hope it will be ok until after christmas. Just another thought...could it maybe be in a wheel bearing? Every morning when I drive it for the first time of the day,and the car is cold,I get a slight wobble feeling from one of the wheels. Not sure which one though. It only does this for about 20 feet and when you get to like 25-30MPH it goes away and not to be felt again unless the car sits undriven for like 10 hrs. Any ideas on this issue and could it be related to my other problem?
 
#58 ·
i am having the same problem

hai,
i am having the same problem here..

Mine shakes from 50 to 70mph and it just got worse.
Minde started after i changed my right axle and the axle i put was aftermarket and i am guessing it has something to do with the axle.
But.. now there is a squeecking noice when i turn the steering wheel.. now i started thinking it's either the axle,balljoint, or the bearing.. i will have to take it to the shop and check it out..

pe@ce
Mandidy