Shudder under acceleration

[mr_v8]

Hi guys,

I have just purchased a VR v6 S1 and when I am accelerating, there is a shudder from the rear end...

I have been told that a boot (I think it goes somewhere near the drive shaft and diff ?) can cause this if it is old.

Any ideas ?

Cheers.

[deathsminion]

Tail shaft could be unbalanced?

[HDT_aero]

tailshaft centre bearing
tailshaft unis
engine mounts
gearbox mount
trans oil level

first off check you have the same size rims all round

[mr_v8]

Yeah, all the wheels are same size...

The shudder only happens under hard acceleration, if that helps and is certainly coming from the rear.

[QWK-11E]

i had a similar prob ended up being my engine and gearbox mounts

[vt1538]

Possibly rear shocks or bushse

[commielover]

when i bought my VR there was a shudder especially in first and second when u put your boot down.

the car yard fitted a new tailshaft and now theres no shudder.

The tail and driveshaft was not alligned properly.

[mr_v8]

I am leaning towards the tail shaft having some sort of drama... but I guess I'll see what the mechanic says...

[MaXiLeeCH]

It's the centre bearing in the tail shaft..... Get it replaced and all should be fine.

FWIW, if you get a shudder on slow down, its usually the centre bearing dying too.
simple to fix, if you have some experience.

Hope this helps

[lilkel]

hi,
i've got a 5.0L VR statesman and the centre bearing has had it! i was quoted $170 to fix it and told that it was pressed in?? are they hard to change at home???

[mr_v8]

thanx heaps for all of your repsonses... its off the mechanic tomorrow morning, so I guess we'll see what they reckon (or how good they actually are - the car yards bloke)....

will update once fixed

[Spilly]

Get your tyres alligned and balenced. I had the same problem and it turned out that my rear tyres were out a few degrees which caused the car to shake under acceleration. Its worth looking into. BTW are your rear tyres very worn as my problem was actually found as i was getting a wheel change-over cause my rears were bald

[mr_v8]

Hi everyone... Just wanting to let you know that one of my uni's was worn, so the mechanic changed it... volia ! no more shudder...

BTW, tyres are in excellent condition

Thank you to all that shed some light on this for me !

[matt69]

i had a centre bearing done for $100 dollars fitted. used to make a hell of a noise with four people in the car lol.