On Saturday pulled off M20 into car park started to reverse & got strange noise from rear wheel passenger side.

 

Put it up on stands Sunday & ran it forwards & reverse, no strange sounds.

 

Back on the road today the noise is back & sounds worse when slowing down!

 

Am I thinking wheel bearing? Not rear diff!

 

Any mechanics tell me how can I test if it is!

 

Art

I've had these symptoms on several cars over the past 18 months and after exhausting all possible mechanical/bearing related causes it has turned out to be .......tyre wear.

A vectra with directional pattern tyres on the front that had a bearing noise which was louder as the car slowed to a halt. It didn't change side-to-side when turning/weight shifting etc and after consulting with several other mechanics I ended up suspecting gearbox/drivetrain/bearing wear.

 

I blew the tyres up to 45psi and the nosie changed, I dropped it to 18psi and the noise changed, all the time still clearly giving a bearing type of drone. I reset tyre pressure to 32 and swapped the fronts to rear.....lo and behold .....the bearing noise transferred to the rear. The tyres were just slightly more worn on the inner and this caused the noise.

 

I has it on an audi tt, delivered to me complete with 2 new rear wheel bearings to fit and a diagnosis of worn bearings. Again the noise went away when the tyreswere replaced. Good luck I hope you find it..

Thanks for the info on the tyres I will remember that.

 

This is more a knocking grinding kind of sound ( how difficult to explain sorry) & me asking for advice!

 

Its similar to a front drive CV joint when worn, thats why I thought wheel bearing, difficult when driving the car!

If youve been over gravel or loose chips at any sort of speed you might have picked up a small stone stuck between the brake disc and backplate. I had that on a car on friday.

will be driving home at 4 will check that out. cheers ! But ive driven 17 miles to work thought a stone would have been released by then?

if it is the rear bearings and you want some..

give Chris a call - Call:01803 850050 or Email info@conceptua-tuning.co.uk

Sometimes you find them going v cheap on ebay, I got three NOS SKFs in 2 seperate listings for about £15 each.

I just checked these on ebay. I must've gotten a right bargain. They're a good bit more than £15

Genuine oem wheel bearing are quite expensive, esp the rear ones.

I have a couple sitting in my garage on a spare set of rear knuckles!

I have a couple sitting in my garage on a spare set of rear knuckles!

 

:lol: where the devil did they come from...

guinnal! It was right there was a gravel stone between disc & backplate!

 

Whilst driving home yesterday I jet washed the Z

 

Before setting off this morning still convinced, rear wheel bearing!

 

I pm'd Si to take up his offer. Jumped in the Z to go to Cambridge & hay ho no funny noises!

Just returned 230 mile round trip & no noises!

So just going to pm Si now!

Got your PM Art, no problem. Glad it was something simple! :)