Notices

Knocking shocks?

Thread Tools
 
Search this Thread
 
Old 27 March 2014, 02:31 PM
  #1  
GONZO01
Scooby Regular
Thread Starter
iTrader: (6)
 
GONZO01's Avatar
 
Join Date: Feb 2007
Location: South Wales,Swansea.
Posts: 1,503
Received 1 Like on 1 Post
Default Knocking shocks?

As per title what does it sound like? Does it sound like you have something loose in the boot that us rattling around?
Old 27 March 2014, 02:31 PM
  #2  
BrownPantsRacing
Scooby Regular
iTrader: (6)
 
BrownPantsRacing's Avatar
 
Join Date: Oct 2010
Location: Herts & Bucks
Posts: 8,700
Received 128 Likes on 107 Posts
Default

Mine sounded like a clonk when I came off the drive, not a rattle.
Old 27 March 2014, 03:29 PM
  #3  
The Stitcher
Scooby Senior
iTrader: (12)
 
The Stitcher's Avatar
 
Join Date: Apr 2006
Location: south wales rhondda
Posts: 4,067
Likes: 0
Received 0 Likes on 0 Posts
Default

The dreaded new age knocking shocks , there is a good mod that can be done to the shock shown on YouTube which involves a grease nipple and grease
Old 27 March 2014, 03:29 PM
  #4  
The Trooper 1815
18 June 1815 - Waterloo
iTrader: (31)
 
The Trooper 1815's Avatar
 
Join Date: Dec 2004
Location: To the valley men!
Posts: 19,156
Received 14 Likes on 12 Posts
Default

Check the spare wheel, jack, tool kit and jack handle are all secure. If you still not convinced empty the boot then go for a drive again.

The knocking shock is common but should have been picked up on a test drive and negotiated in the price.

KYB are a good choice but remember to replace in pairs. Google or a search on here will answer all your questions.

Last edited by The Trooper 1815; 27 March 2014 at 03:36 PM.
Old 27 March 2014, 03:43 PM
  #5  
GONZO01
Scooby Regular
Thread Starter
iTrader: (6)
 
GONZO01's Avatar
 
Join Date: Feb 2007
Location: South Wales,Swansea.
Posts: 1,503
Received 1 Like on 1 Post
Default

Originally Posted by The Trooper 1815
Check the spare wheel, jack, tool kit and jack handle are all secure. If you still not convinced empty the boot then go for a drive again.

The knocking shock is common but should have been picked up on a test drive and negotiated in the price.

KYB are a good choice but remember to replace in pairs. Google or a search on here will answer all your questions.
Done all the above, nothing on the test drive otherwise I would of mentioned it while buying the car. Done a search on here but couldn't find the answer to my question hence why I asked!
Old 27 March 2014, 03:58 PM
  #6  
Donnie Brasco 46
Scooby Regular
iTrader: (2)
 
Donnie Brasco 46's Avatar
 
Join Date: Sep 2012
Location: Herts
Posts: 319
Likes: 0
Received 3 Likes on 3 Posts
Default

You normally get a knocking noise when manoeuvring at low speed. To me it sounded like a exhaust with loose hangers and it was moving around.

It's a common fault, but then most blob eyes are now around 10 years old so probs with shock absorbers are to be expected.

Kyb shocks are good replacements though there are quick fixes if it annoys you that much in the meantime. The shocks normally aren't affected performance wise by the knocking. You could jack the car up, lift the dust boots and spray wd40 or white lithium grease onto the shocks.... Though it's no long term fix it does seem to stop the knocking for the short term.
Old 27 March 2014, 04:29 PM
  #7  
The Trooper 1815
18 June 1815 - Waterloo
iTrader: (31)
 
The Trooper 1815's Avatar
 
Join Date: Dec 2004
Location: To the valley men!
Posts: 19,156
Received 14 Likes on 12 Posts
Default

20 seconds of my life I have lost. Google is GOD!

https://www.scoobynet.com/suspension...pe-struts.html

http://www.pistonheads.com/gassing/topic.asp?t=906125

http://www.subaru-impreza.org/forum/...-knocking.html

http://www.iwsti.com/forums/gd-suspe...-pictures.html

http://www.iwsti.com/forums/gd-suspe...ion-noise.html

Last edited by The Trooper 1815; 27 March 2014 at 04:31 PM.
Old 28 March 2014, 09:02 AM
  #8  
evil.soup
Scooby Senior
iTrader: (1)
 
evil.soup's Avatar
 
Join Date: Aug 2006
Location: At home counting pennies!!!
Posts: 2,571
Received 12 Likes on 10 Posts
Default

I thought i had knocking shocks myself just over a year ago so got the car quickly looked at by a specialist. I was told the shocks were toast so replaced shocks with coilovers but still had the knocking noise. I worked out myself that it was the boot latch rattling and the original shocks were actually in full working order. All it took was a rag under the boot bump stops to fix it!! That was a very costly piece of bad advice!!
What i am saying is, make sure you rule out everything else before deciding its the worst case scenario.
On a side note, coilovers should never go near a road car in a million years, they simply cannot handle the crappy UK roads so if someone suggests them, dont bother!
Old 28 March 2014, 09:36 AM
  #9  
BrownPantsRacing
Scooby Regular
iTrader: (6)
 
BrownPantsRacing's Avatar
 
Join Date: Oct 2010
Location: Herts & Bucks
Posts: 8,700
Received 128 Likes on 107 Posts
Default

^^^^ That's my worry about going coilovers on our roads. Bad enough already with my standard shocks and lowering springs.
Old 28 March 2014, 10:54 AM
  #10  
Thermalp4
Scooby Regular
iTrader: (3)
 
Thermalp4's Avatar
 
Join Date: Jun 2010
Location: Carmarthen
Posts: 302
Likes: 0
Received 1 Like on 1 Post
Default

Agree with evil.soup.

Had coilovers on a few of my cars and apart from looking the business they just aren't practical.

Even £2k Bilstein PSS9s.
Old 28 March 2014, 12:11 PM
  #11  
evil.soup
Scooby Senior
iTrader: (1)
 
evil.soup's Avatar
 
Join Date: Aug 2006
Location: At home counting pennies!!!
Posts: 2,571
Received 12 Likes on 10 Posts
Default

Originally Posted by BrownPantsRacing
^^^^ That's my worry about going coilovers on our roads. Bad enough already with my standard shocks and lowering springs.
To be honest the ride isnt even the worst part, although it is awful. The worst thing is the fact that they are too stiff and dont have enough travel to quickly adapt to random lumps and bumps so on an average road at speed the car becomes unstable and skips around. On the odd sections of fresh smooth tarmac i hit they were outstanding but anything that isnt like a track cannot be driven quickly and safely.
Old 28 March 2014, 12:16 PM
  #12  
BrownPantsRacing
Scooby Regular
iTrader: (6)
 
BrownPantsRacing's Avatar
 
Join Date: Oct 2010
Location: Herts & Bucks
Posts: 8,700
Received 128 Likes on 107 Posts
Default

Originally Posted by evil.soup
To be honest the ride isnt even the worst part, although it is awful. The worst thing is the fact that they are too stiff and dont have enough travel to quickly adapt to random lumps and bumps so on an average road at speed the car becomes unstable and skips around. On the odd sections of fresh smooth tarmac i hit they were outstanding but anything that isnt like a track cannot be driven quickly and safely.
That's a bit of a worry.

Been toying with the idea of coilovers on my every day scoob for so many years but quite like my std shocks and lowered springs combo.
Old 28 March 2014, 01:01 PM
  #13  
evil.soup
Scooby Senior
iTrader: (1)
 
evil.soup's Avatar
 
Join Date: Aug 2006
Location: At home counting pennies!!!
Posts: 2,571
Received 12 Likes on 10 Posts
Default

Originally Posted by BrownPantsRacing
That's a bit of a worry.

Been toying with the idea of coilovers on my every day scoob for so many years but quite like my std shocks and lowered springs combo.
You need to get a ride in a scoob with them fitted before you jump in. I took mine off and sold them after 4 months partly because i didnt need them in the first place and partly because they were making my life hell! My car only covers 3-4k a year and that was still way too much for a road car with coilovers. On the plus side, they did improve the look of the car and on a motorway at speed the car was smoother and more comfortable but things like that are kind of pointless on an impreza, in my opinion that is. Some may disagree but you cant beat a good set of progressive springs on a road car.
Old 29 March 2014, 12:30 AM
  #14  
GONZO01
Scooby Regular
Thread Starter
iTrader: (6)
 
GONZO01's Avatar
 
Join Date: Feb 2007
Location: South Wales,Swansea.
Posts: 1,503
Received 1 Like on 1 Post
Default

Well been out in the car today to and from work and also out for a drive this evening and no noise from the rear at all so I'm baffled what the noise was, but hey ho forget about it for now and if it comes back I will investigate further.
Old 29 March 2014, 12:47 AM
  #15  
fpan
Scooby Regular
iTrader: (11)
 
fpan's Avatar
 
Join Date: Jan 2007
Location: UK
Posts: 3,422
Received 174 Likes on 128 Posts
Default

Originally Posted by evil.soup
I thought i had knocking shocks myself just over a year ago so got the car quickly looked at by a specialist. I was told the shocks were toast so replaced shocks with coilovers but still had the knocking noise. I worked out myself that it was the boot latch rattling and the original shocks were actually in full working order. All it took was a rag under the boot bump stops to fix it!! That was a very costly piece of bad advice!!
What i am saying is, make sure you rule out everything else before deciding its the worst case scenario.
On a side note, coilovers should never go near a road car in a million years, they simply cannot handle the crappy UK roads so if someone suggests them, dont bother!
Who was the specialist? PM if you prefer.

Having suffered from coilovers in the past myself I agree with the advice of getting in a car that has them before you decide to go for them.

Last edited by fpan; 29 March 2014 at 12:48 AM.
Old 29 March 2014, 09:52 AM
  #16  
evil.soup
Scooby Senior
iTrader: (1)
 
evil.soup's Avatar
 
Join Date: Aug 2006
Location: At home counting pennies!!!
Posts: 2,571
Received 12 Likes on 10 Posts
Default

Originally Posted by fpan
Who was the specialist? PM if you prefer.

Having suffered from coilovers in the past myself I agree with the advice of getting in a car that has them before you decide to go for them.
To be honest I would rather not say only because they made effort to put things back as they were without charge, although it still left me about £300 out of pocket after i sold the coilovers on. The moral of the story is to always do as much investigation into a problem as you possibly can before deciding on an expensive solution and just because someone is a specialist it doesnt mean they are right.
Old 29 March 2014, 12:03 PM
  #17  
fpan
Scooby Regular
iTrader: (11)
 
fpan's Avatar
 
Join Date: Jan 2007
Location: UK
Posts: 3,422
Received 174 Likes on 128 Posts
Default

Fair enough and kudos to them for putting things back FOC.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
PetrolHeadKid
Driving Dynamics
10
05 October 2015 05:19 PM
WrxSti03
Drivetrain
0
30 September 2015 10:24 PM
bluebullet29
General Technical
2
27 September 2015 07:52 PM



Quick Reply: Knocking shocks?



All times are GMT +1. The time now is 07:20 AM.