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strange noise


kargato

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Hey guys,

 

Im trying to sort out some issues with my car. From time to time I hear a strange noise coming from the rear of the car. I am not sure what it is so please let me know what you think.

 

It sounds like the wheel is about to fall off...[OOPS][/OOPS]

 

you can hear the audio in the attachement or view on youtube.

 

Thanks for your help.

 

Johnny.

 

[video=youtube;CcSsON-HkyQ]

VID 20120902 00006.zip

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everything is tight. jacked the car up, took the wheels off and everything looks the part. I have checked the plates behind the brake disk to see if they were bent but thats not an issue. I am inclined to believe its the wheel bearing, but it does not sound like a faulty wheel bearing, and I dont hear this noise all the time, last time I heard it was 2 months ago :blink:

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everything is tight. jacked the car up, took the wheels off and everything looks the part. I have checked the plates behind the brake disk to see if they were bent but thats not an issue. I am inclined to believe its the wheel bearing, but it does not sound like a faulty wheel bearing, and I dont hear this noise all the time, last time I heard it was 2 months ago :blink:

 

Surely a wheel bearing would do it all the time.

 

Have you checked the boot for the game Jumanji?

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Surely a wheel bearing would do it all the time.

 

Have you checked the boot for the game Jumanji?

 

Hmm. Well the whole rear axle is going to get checked out soon. Just wanted to know if you guys had experienced this before and possibly point me in the right direction.

 

There no Jumanji game back there but you may get that real life Jumanji experience if you drive down to Blackpool Zoo

on East Park Drive and maybe jump the fences? :p

Edited by kargato (see edit history)
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Coincidentally a chap at work had a noise like that on his Clio just last week and it was a wheel bearing that had ovalled out. You can check two things:

 

1) do the weave-from-side-to-side test, the noise should go away or at least get much quieter when you turn one direction compared to the other. That'll show it's a wheel bearing and which side it is - if you turn right and it goes quiet, it's the right hand side as you're taking the load off that wheel, and vica versa.

 

2) Jack the car up and spin the back wheel (You'll need to get both rears off the ground if you've got a limited slip diff). Watch the top of the tyre edge on and you'll probably see it rise and fall as the wheel spins, because of the deformed bearing. Also watch edge on and it'll probably go in and out as well. We'#re talking about 1mm here.

 

If none of that shows anything up, it's probably your diff that's chipped a gear tooth.

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  • 2 weeks later...
Coincidentally a chap at work had a noise like that on his Clio just last week and it was a wheel bearing that had ovalled out. You can check two things:

 

1) do the weave-from-side-to-side test, the noise should go away or at least get much quieter when you turn one direction compared to the other. That'll show it's a wheel bearing and which side it is - if you turn right and it goes quiet, it's the right hand side as you're taking the load off that wheel, and vica versa.

 

2) Jack the car up and spin the back wheel (You'll need to get both rears off the ground if you've got a limited slip diff). Watch the top of the tyre edge on and you'll probably see it rise and fall as the wheel spins, because of the deformed bearing. Also watch edge on and it'll probably go in and out as well. We'#re talking about 1mm here.

 

If none of that shows anything up, it's probably your diff that's chipped a gear tooth.

 

 

I did that when the car made the noise, before I recorded that video clip. The suggestion came from a forum member on another supra based forum. Everyone on that forum claimed wheel bearing and told me what to do to check for a faulty one, but it was kind of strange because the noise would happen once in a while... The last time I heard the noise was when I recorded the video clip, and that was a few months back. The car is driven daily, and its a bit strange that a faulty wheel bearing would stay quiet for so long.

 

BUT I will say that the noise did stop when the weight of the vehicle transferred to one side and became very loud on the other, and returned as soon as the car's center of gravity returned to neutral. It also makes the noise slightly when I reverse a few yards, but nothing like what you hear in the video. I can also get it to make the noise slightly when I accelerate hard and boost and then slow down or stop; the noise will then surface when I move off again, but it wont last long, just a second or two.

 

I have jacked the car up, shook the rear wheels side to side for movement, checked the bolts, exhaust etc everything seems OK. However, in the process of checking for the cause of the issue I have found a faulty U joint. The one closest to the transmission. It does not look like it can be replaced? Please let me know what you guys think, I have attached a picture of the u joint. It does not have any C clips on it, so if it can be replaced, please let me know how to do so. My next step is to have the diff checked out, to see if it got visited by a bad dentist :blink:

thanks

 

Johnny.

IMG-20130126-00382.zip

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Well I am trying to sort the drive shaft out first because a bad u joint can cause unpleasant noise as well. Has anyone looked at the pic I uploaded in my last post? I am trying to find replacement u joints. The TSRM says to replace the whole drive shaft! I'm sure there is a way around that!

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I've seen more bad wheel bearings where the wheel can't be rocked by human hands than can. They have to be monumentally buggered to have that much play in them.

 

Drop Keron on here a line for 2nd hand parts :)

 

Ok thanks for the heads up.

 

I am trying to sort everything one step at a time. Right now I need to know if anyone has replaced their u joint on the drive shaft. I know there are replacement joints for this type of u joint for other vehicles, and I would much rather replace the joint than to obtain another used shaft which may or may not last long, and puts me back where I started...... I have searched this forum and google extensively, and I am finding it unbelievable that I am the only person with a faulty joint on an mkiv, or maybe they all just replaced their drive shafts and didn't document what they did :blink:

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  • 2 months later...

Hey guys a bit of an update,

 

I had the car checked out and did not find a solution to this problem yet! But the noise has disappeared since I made that video I posted.

 

over the weekend I decided to clean up my rims and give them a good polish, and saw that the tire on the left rear (where I suspected the noise was coming from) is bald on the inside, to the extent that the steel belt is showing :blink: This was a complete surprise as the car was checked about 2 months ago trying to find the cause of that "tribal band" noise and there was a decent amount of tread left on the tires. When i checked the right rear wheel, the tread looked pretty much the same as it did 2 months ago, BUT! while looking around I saw that the rear sway bar (stock) was broken near the end where the drop link attaches :wtf:

 

I have no idea when this happened, and I have not been pushing the car since I am still uncertain about the cause of that noise that is proving to be elusive, so I could not feel excessive body roll as one would expect.

 

my question is, would the broken sway bar cause the excessive tire wear on the OPPOSITE side of the car or is there something more sinister going on here...

:sos:

 

 

Jonathan.

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