Notices
Drivetrain Gearbox, Diffs & Driveshafts etc

Hmmm whats that noise

Thread Tools
 
Search this Thread
 
Old 30 April 2000, 08:32 PM
  #1  
Showtime
Scooby Regular
Thread Starter
 
Showtime's Avatar
 
Join Date: May 1999
Posts: 290
Likes: 0
Received 0 Likes on 0 Posts
Unhappy

When slowing down and the engines revs drop from 4500rpm to 4000 there's a noise that sounds like the kind you get when driving close to electricity pylons and you get that loud radio interference. It also does it as it comes through from 3500 rpm to 3000 rpm..never any other time..anyone got any clues ??. At first I thought it was the radio but it still does it when off so its not that..
Old 30 April 2000, 09:34 PM
  #2  
martin b
Scooby Regular
 
martin b's Avatar
 
Join Date: Nov 1999
Posts: 83
Likes: 0
Received 0 Likes on 0 Posts
Unhappy

I think my car suffers from a similar problem.I originally thought it was something to do with the powersteering pump, as it was rev related, but now I'm not to sure.wish I could help, but everyone I talk to thinks I'm imagining it !!

martin
sti5
Old 30 April 2000, 10:02 PM
  #3  
DocJock
Scooby Regular
 
DocJock's Avatar
 
Join Date: Jan 2000
Location: a more anarchic place
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts
Talking

Showtime

If it is a buzzing noise on overrun then it is probably a frequency dependent vibration.
Commonest one around those revs is a fractured heatshield. If it is, don't let dealer fob you off with a repair. It is an approved full parts/labour warranty job.

Regards, John
Old 02 May 2000, 12:31 AM
  #4  
Showtime
Scooby Regular
Thread Starter
 
Showtime's Avatar
 
Join Date: May 1999
Posts: 290
Likes: 0
Received 0 Likes on 0 Posts
Unhappy

Martin..You're not imagining it..

Docjock..Thanks for your input, Could well be the heatshield, noise is a buzzing one for sure, but the cars and STi V2 (no warranty, bought it from japan myself) only got 20K on the clock. is it a diy job or does this mean a trip to lockyears ? (hardly dare get a price...any idea of cost ?

Old 02 May 2000, 01:18 PM
  #5  
Martinr
Scooby Newbie
 
Martinr's Avatar
 
Join Date: Dec 1999
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
Unhappy

Showtime,

My STi v2 has the same woe...left hand side of engine bay at 2700-2900 rpm. Had it bolted together a while ago but looks like it has reappeared.

Let me know what the financial damage is if/when you get it fixed.

Cheers.

Mart.
Old 02 May 2000, 10:01 PM
  #6  
Keith Moore
Scooby Regular
 
Keith Moore's Avatar
 
Join Date: Nov 1998
Posts: 88
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

I had a vibrating rattle on my MY94 which appeared after having a clutch fitted. Started at around 2500rpm till 3500rpm. Initially it was only in first gear but progressed to all gears. Took my dealer 3 attempt over a 7 month period to solve it.

Turned ou to be an electrical connector block on top of the gearbox casing vibrating. There's a metal tab which fits into the connector from the housing and it hadn't been bent flat to the box.

This may help.

Keith
Old 02 May 2000, 11:54 PM
  #7  
Tim W
Scooby Regular
iTrader: (1)
 
Tim W's Avatar
 
Join Date: Feb 1999
Posts: 2,852
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

Rathedr than have a cracked heat shield replaced with another expensive metal one which is bound to crack again , if you've got to pay for the parts yourself do away with them and buy some heat shield wrap.

Far cheaper, and it won't crack or vibrate Places like Demon Tweeks and so forth usually keep it in stock.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Phil3822
ScoobyNet General
33
02 October 2015 03:22 AM
Jamesh10
General Technical
3
01 October 2015 11:56 PM
legb4rsk
Non Scooby Related
14
01 October 2015 05:18 AM
sivo
ScoobyNet General
12
26 September 2015 12:34 PM
Baskey
General Technical
3
25 September 2015 03:45 PM



Quick Reply: Hmmm whats that noise



All times are GMT +1. The time now is 02:07 AM.