Vibration when driving

[oddkid82]

Hey fellas
When I am driving at around 70 to 100 kph I can feel a small vibration. Thought it might have been the back wheels, got them balanced and they were ok.
If the front wheels are out of balance I should feel it through the steering wheel, but I only get a tiny bit.
Any ideas?

 

[KraftyPg]

It's a D40 it's suppose to rattle because it wasn't built properly and it needs a warranty call, or a recall, or a trade in.....sorry just getting in before any of the D22 ladies pop up.

Have you not had the front wheel balanced and that is why you are saying "if the front wheels are out"? Is there a reason for not getting the front done yet?

 

[oddkid82]

It's a D40 it's suppose to rattle because it wasn't built properly and it needs a warranty call, or a recall, or a trade in.....sorry just getting in before any of the D22 ladies pop up.

Have you not had the front wheel balanced and that is why you are saying "if the front wheels are out"? Is there a reason for not getting the front done yet?

The guy who balanced the back said if there is no vibration through the steering wheel then front should be ok.
I think I will get the front done just to see if it makes any difference.
Could there be another reason for it?

 

[KraftyPg]

The guy who balanced it could be right but are you suggesting in the first post that despite this guys comments you can feel a bit of vibration in the steering?

 

[oddkid82]

The guy who balanced it could be right but are you suggesting in the first post that despite this guys comments you can feel a bit of vibration in the steering?

That's right I can feel a little bit through the steering.

 

[KraftyPg]

I'd be taking it in to get the front end balanced before I did much else. Atleast if it's still there after the balance you can rule that out as an issue.

 

[Old.Tony]

Is it an auto?

If so, take it out for a drive again, but keep the overdrive OFF - don't let it get into top gear. If it still happens, then it could be your wheels. If the vibration stops, there's a good chance it's the Torque Converter Clutch (TCC) which is controlled by the Transmission Control Module (TCM) to lock the torque converter at light loads at speeds of 75km/h or over.

The vibration is experienced because the TCC isn't engaging properly, but the TCM continues to try it because the conditions are right (high enough road speed, gearbox in drive with overdrive on, engine load low). Change one of those conditions and the TCM won't try - and the vibration stops.

Let us know how the test goes.

 

[nathand22]

Have you been off road lately???
The reason i ask is, Mine got a vibration after i put a small dent in the tail shaft while doing a river crossing.
Solution for me was to get a new tail shaft made from "Hardy Spicer" the good bit about that was they made it thicker by a tiny bit and they were way cheeper then a genuine replacement.

 

[oddkid82]

Is it an auto?

If so, take it out for a drive again, but keep the overdrive OFF - don't let it get into top gear. If it still happens, then it could be your wheels. If the vibration stops, there's a good chance it's the Torque Converter Clutch (TCC) which is controlled by the Transmission Control Module (TCM) to lock the torque converter at light loads at speeds of 75km/h or over.

The vibration is experienced because the TCC isn't engaging properly, but the TCM continues to try it because the conditions are right (high enough road speed, gearbox in drive with overdrive on, engine load low). Change one of those conditions and the TCM won't try - and the vibration stops.

Let us know how the test goes.

Thanks old tony, I have got a manual . Good bit of info.

 

[oddkid82]

Have you been off road lately???
The reason i ask is, Mine got a vibration after i put a small dent in the tail shaft while doing a river crossing.
Solution for me was to get a new tail shaft made from "Hardy Spicer" the good bit about that was they made it thicker by a tiny bit and they were way cheeper then a genuine replacement.

I went on a full on weekend about 4 weeks ago. Didn't notice anything after.
How small does the dent have to be? Haven't really noticed anything on it yet will have a good look tomorrow.

 

[nathand22]

I went on a full on weekend about 4 weeks ago. Didn't notice anything after.
How small does the dent have to be? Haven't really noticed anything on it yet will have a good look tomorrow.

Have a good look, check you havnt nocked off one of the balance weights and check for any dents.
The dent in mine wasnt that big but it was like a spiral, you could see the small hit then where it spun as i moved forward, leaving a sort of cork screw looking mark.

If its a wheel balance thing, they normally come in at a certain speed, say 80kph then go at 90kph and back again at 100kph.

With the tail shaft it was a really fine vibration that stayed no matter what speed i was doing over 80kph.

Let us know how you go.

 

[oddkid82]

Have a good look, check you havnt nocked off one of the balance weights and check for any dents.
The dent in mine wasnt that big but it was like a spiral, you could see the small hit then where it spun as i moved forward, leaving a sort of cork screw looking mark.

If its a wheel balance thing, they normally come in at a certain speed, say 80kph then go at 90kph and back again at 100kph.

With the tail shaft it was a really fine vibration that stayed no matter what speed i was doing over 80kph.

Let us know how you go.

Got the front wheels balanced and all seems to be good. They were only out a little bit.

Had a good look at the tail shaft and no damage, thank f#%k for that. Got other things to spend my money on, like a set of rims and muddies.

 

[Sibusiso]

Is it an auto?

If so, take it out for a drive again, but keep the overdrive OFF - don't let it get into top gear. If it still happens, then it could be your wheels. If the vibration stops, there's a good chance it's the Torque Converter Clutch (TCC) which is controlled by the Transmission Control Module (TCM) to lock the torque converter at light loads at speeds of 75km/h or over.

The vibration is experienced because the TCC isn't engaging properly, but the TCM continues to try it because the conditions are right (high enough road speed, gearbox in drive with overdrive on, engine load low). Change one of those conditions and the TCM won't try - and the vibration stops.

Let us know how the test goes.

Hi Tony, mine is automatic and the vibration is between 70-110km/h. It comes and goes when accelerating light but when flooring, no vibration. What could be cause?

 

[Old.Tony]

Usually vibration at that specific point for light acceleration is caused by the torque converter trying to lock up but being unsuccessful. Repairing it is a job for an auto transmission specialist (but don't go to a small outfit). Replacing the torque converter with a new one is far more preferable to having it reconditioned.

To be sure about it, have a transmission guy hook his gear up and look at the "slip %" (or something close to that) when the car is being driven. From about 70km/h and above, the gearbox will try to engage the clutch and the analysis tool will see that happening.

When you're accelerating hard - or if you have overdrive off - the gearbox won't try to engage the lock so it won't vibrate.