Matthewp93

I have a Impreza STI type uk 2006.

A couple months ago I was playing with it on an old all weather pitch full of very fine gravel type stuff- perfect for drifting ;-) Anyways when I left I couldn't go over 40 mph without the car bouncing and shaking the spolier was going wild so I went straight to a car wash and got the guys to give up in the wheel arch and suspension a good blast as I thought it may be trapped gravel/dirt after this the problem went away and it was back to normal. Yesterday I decided to go back for a little play around at the same place and it didn't seem to do any harm this time until I got over 80 mph it was bouncing/shaking like a bitch I've tried pressure washing 3 times with no luck and have been down the m6 today wich was not very pleasent it literally cannot go over 90 without the risk of loosing control and driving normally isn't the same it doesn't feel as safe on the road as usual I'm starting to think I've damaged something does anyone have ideas or advice on how to help/fix this it please.

Cheers

thenewgalaxy

Could be anything from a buckled alloy and alignment issues through to smashed shocks.

Get the car up on a ramp and see if there's any give in the shocks. And see if there are any wobbles in the wheels on rotation.

1509joe

iTrader: (2)

Wash the inner of the rims. Muck stuck all round the inside.

The Trooper 1815

iTrader: (31)

Or stop driving like a tool.

gazzawrx

iTrader: (11)

^^ this, if doing it the first time damaged the car then surely going back to the same place to have another go is plain stupid

fat-thomas

iTrader: (4)

Lol what an utter ****....
As above stop driving like a tool in fields!

f1_fan

iTrader: (9)

But it's a rally car innit?

Blue by You

iTrader: (23)

well somebody had to say it

Matthewp93

Oh noo getting ganged up on by the haters lol.
The advice given I will try today hopefully nothing serious and will have to stop being a complete and utter **** in the future

hodgy0_2

does this model come with the DCCD diff

if so has it been altered

bouncing (skipping??) could be caused buy the Diff having too much lock (for tarmac)

The Trooper 1815

iTrader: (31)

So, driving like a tool! I have a drift handbrake for sale if he wants it.

The Zohan

Sell it and buy a corsa.

Matthewp93

Yes it is the DCCD model I altrered it to manual and rearward so the Diff was free and the green light was on the dash. But on normal use it is always on auto

hodgy0_2

We'll I suspect what you are experiencing is some sort of "transmission windup"

Maybe the DCCD system is not fully unlocking the Diff (whatever the lights on the dash/console say)

Do a google search for

transmission wind up

fat-thomas

iTrader: (4)

So ypu bought an impreza and drove it across a field and donutted it and it now makes funny noises.
The idiot behind the wheel is at fault here.
Sell the car asap!

Matthewp93

Why don't you take your unwanted fatherly advice somewhere else? to the boring **** forum mabye?

Matthewp93

I have Googled and have a understanding of what it means some guys are saying nothing serious others are. In your experience what would you say are my options is there any way of having a go myself or best of returning to subaru to take a look?

ditchmyster

iTrader: (7)

Reverse for a few hundred yards.

Zuber

next time post a video up

hodgy0_2

well it seems you potentially have two issues

i.e. is your transmission still "wound" up (if it is the actual cause of the problems)

and does the DCCD system work as expected

for the first - you can try and jack one wheel up - this should allow the transmission to unwind - also you can try and turn the wheel, by hand, with the others still on the ground - it should turn quite easily, if it does not, then your diffs maybe in a locked or semi locked (limited slip) mode - tbh I am not an expert on the actual workings of the Subaru DCCD system, all my cars (4x4's) have had crude but very effective mechanical diff lockers

if the wheel turns quite easily then I would assume it is OK to drive,

you then need to find out if the DCCD is working as expected - which may need specialist help with, although I am sure you could do some limited problem diagnosis - there must be a thread on here somewhere about that

Fonzey

iTrader: (5)

Could be wheel balance? If you've got a load of crud caked on the inside of your wheels, or knocked some weights off, or buckled a rim.

I had a slightly buckled rim - had it on the back without knowing for months. Rotated the wheels one day, and the car was almost undriveable.

Will cost you about £20 to get them all checked for balance. Worth it before doing anything else.

Matthewp93

Thanks for the advice I have had it another wash and reversed 100 yards and belive it or not the problem has gone lol not sure weather it was the wash or the reversing but it's worked. Touch wood that's it sorted for good and no more problems and will know better for next time

1509joe

iTrader: (2)

S**t on the inner / inside of the rim seen it more times than enough. In a stage no problem wouldn't notice between stages on the road nearly undrivable. Glad you got it sorted.

Dibbles00

As said - sounds like transmission wind up. I read into this when I was trying to get my car onto the drive on full right steering lock and the car was doing as you describe. Stopped as soon as I pulled the hand brake up one click. Has never done it since, but was scary to say the least.
Always look after your car as much as possible and it will look after you. Abuse it and you will see it abuse you (your wallet).

hodgy0_2

If you want to understand the engineering principles behind differentials - and by extension understand the terms, slip, limited slip, locked, open etc

Look at this great video


Skip to 1.30 odd - but great stuff