displaying posts 1 to 10 of 10

Author Subject: Shuddering at high rpm!
thewho07

Regular

Location: Scotland

Registered: 11 Aug 2009

Posts: 289

Status: Offline

Post #1
Car shudders really bad above 4500 rpm, the whole dash shakes its self to bits! Thinking it could be an engine mount. Any ideas? Ta!
Posted 3rd Dec 2011 at 13:50
gtisid

Seasoned Pro

Location: chelmsford

Registered: 22 Mar 2003

Posts: 4,992

Status: Offline

Post #2
engine mount at a guess, probably the top one as they fail all the time

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Posted 3rd Dec 2011 at 14:07
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #3
does the gearstick shake about?

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Posted 3rd Dec 2011 at 14:25
heliosphan

Senior User

Location: UK

Registered: 14 Sep 2007

Posts: 950

Status: Offline

Post #4
Had bad shaking with revs on a 405 not long ago. Think it was the lower mount as the gearstick wobbled violently! If you'd have put your skull next to it at maximum thrust there would have been cracks! Think it was the lower mount that was ruined. That or bent driveshafts. Never bothered to find out. The shakes were what made the car. LOL
Posted 3rd Dec 2011 at 14:35
thewho07

Regular

Location: Scotland

Registered: 11 Aug 2009

Posts: 289

Status: Offline

Post #5
Nah gear stick is fine! Dash just shakes to bits! Haha
Posted 3rd Dec 2011 at 14:49
thewho07

Regular

Location: Scotland

Registered: 11 Aug 2009

Posts: 289

Status: Offline

Post #6
gtisid wrote:
engine mount at a guess, probably the top one as they fail all the time


Just had the top one off, seems fine. No cracks etc, looks normal. Hmmm, bottom one maybe?
Posted 3rd Dec 2011 at 15:48
eliotrw

Seasoned Pro

Location: Southwark

Registered: 18 Jul 2010

Posts: 4,864

Status: Offline

Post #7
Could be one of a few things
Balancing
Driveshaft
Dash not secured in the footwells
Bottom mount.
Won't be the top one

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Ex- Phase 3 China GTi-6 T-Reg
Posted 3rd Dec 2011 at 17:21
mattgti6phase2

Seasoned Pro

Location: inside my 6 abusing the tarmac!!

Registered: 16 Jul 2010

Posts: 2,371

Status: Offline

Post #8
+1 for driveshaft.

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Posted 3rd Dec 2011 at 18:42
eliotrw

Seasoned Pro

Location: Southwark

Registered: 18 Jul 2010

Posts: 4,864

Status: Offline

Post #9
In my case it was each of the above at the same time.

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Ex- Phase 3 China GTi-6 T-Reg
Posted 3rd Dec 2011 at 19:00
smithers

Seasoned Pro

Location: Glasgow

Registered: 22 Nov 2004

Posts: 1,016

Status: Offline

Post #10
I've got similair issues at the moment, had the wheels refurbed and changed the bottom mount - top mount looks o.k so I'm looking at driveshafts. CLICK ME

Any advice on where to buy and more importantly where not to buy from? GSF have either side for about £75 a side.

Cheers Thumbs up

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1997 Black GTi6
smithers205 at hotmail.com
Posted 3rd Dec 2011 at 20:08

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