Unusual Evo VI Road Noise

[L555_BAT]

I recently bought an EVO VI and when you get to around 35 MPH a noise appears from the rear.

It sounds a bit as if you were towing a trailer or similar to being in an aircraft!

The car is perfect below this speed.

I'm hoping it's the rear wing, but it's not been messed around with and I can't see a car being sold from new with a noise like this. I'm paranoid it's the dif or something worse, so any input would be great!

Thanks in advance....

[liner33]

I doubt its the wing , mine doesnt do it , id look at the tyres on the back , perhaps they have worn unevenly or something

[pwpro]

are you sure its not just tyre noise as evo's have very little sound proofing ?

[L555_BAT]

Yes it does sound like major tyre noise BUT i have a Type R Impreza too and it has no underseal or sound proofing and its nowhere near as bad. Thanks

[Carfiend]

I would say tyres or maybe a wheel bearing as when you are moving along rumbles and wind sound very similar

[L555_BAT]

Ok thanks for the info. I never realised tyres could make or cause so much road noise?

[pwpro]

what tyres are on the car ?

semi slicks are terrible my 888's after a track day are deafening !!

[L555_BAT]

They are Bridgestones. Thanks

[rhinochopig]

The AYC grumbles when knackered.

Check out the MLR forum for an answer - there is very little they don't know about lancers on that site.

[L555_BAT]

I registered on there 2 days ago and am still awaiting my account to be approved by a moderator lol.

[rhinochopig]

L555_BAT said:

I registered on there 2 days ago and am still awaiting my account to be approved by a moderator lol.

My VIIRS - so no sound deadening - is surprisingly quiet. I doubt at those speeds it is likely to be the either tyres or wing. Mine makes very little noise.

The AYC pump /diffs are known problems so it could well be this. Unfortunately, they can be expensive an expensive fix.

A good excuse to swap to an RS diff though - it's an LSD rather than an AYC so much simpler and more robust.

Oh, nearly forgot - you don't need to be a member to search previous posts. There will be dozens of strange noise related ones to read through.

[L555_BAT]

You're right. Endless threads on road noise etc. Most people say it's the tyres so ill keep my fingers crossed. Will get it up on a ramp soon and check the wheel bearing and change the diff oil too.

[rhinochopig]

L555_BAT said:

You're right. Endless threads on road noise etc. Most people say it's the tyres so ill keep my fingers crossed. Will get it up on a ramp soon and check the wheel bearing and change the diff oil too.

Fingers crossed for you.

By the way, a word of caution re oil changes and the AYC oil circuit. You're supposed to use a MUT II widget to do the job. http://www.lancerregister.com/showthread.php?t=333...

[liner33]

You only need the mut to bleed the ayc , you can change the diff oil seperatly

[L555_BAT]

Update... Had dif oil along with gearbox and ayc all changed and noise still there

get to about 30 and it sounds like im towing a horse box!

a guy from a garage (not a specialist) said it may well be the wheel bearing but there is little or no free play when its jacked up.

there is no noise below 30 either.

i read on the lancer forums where people have presumed wheel bearings only to find out it was road noise.

anyone had a rear bearing go? do they make a noise at lower speeds?

i had one got on a scooby and it squeeked even at walking speed.

[rhinochopig]

L555_BAT said:

Update... Had dif oil along with gearbox and ayc all changed and noise still there

get to about 30 and it sounds like im towing a horse box!

a guy from a garage (not a specialist) said it may well be the wheel bearing but there is little or no free play when its jacked up.

there is no noise below 30 either.

i read on the lancer forums where people have presumed wheel bearings only to find out it was road noise.

anyone had a rear bearing go? do they make a noise at lower speeds?

i had one got on a scooby and it squeeked even at walking speed.

Can you record the noise on a vid clip and stick it up on the MLR. Failing that, go to a specialist. They're not exactly rare in the UK.

[duckson]

Have you tried driving on smooth, freshly laid tarmac to see if the sounds is still there or changes in anyway?

[liner33]

Have you swapped the tyres round ??

[youngsyr]

There is a noticeable noise in my VIII with semi-slick tyres fitted compared to normal road tyres.

It sounds like a very distant roar, a bit like the sound of a jumbo jet at very high altitude on a still clear day, but constant.

[L555_BAT]

sadly it was the rear wheel bearing. i have some clonking noises going on now at the front mainly when going over bumps especialy. i guess it could be anything but is there anything common?

ps thanks to everyone for their previous help.