Question about 2000 Mini Cooper

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MGB I have a 69 MGB. When braking I hear a like a knock knock sound that seems to come from the front end. I have had the front shockers reconditioned, the car steers well and no sound when corning There is no no category for MGB, I have had to use Mini

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This may be the sound of warped rotors. I have had this problem on other english cars. I once had this problem on a Morris Minor when the brake pads were too hard and became glazed. You may want to investigate EBC Green stuff Brake Pads (Moss Motors)

Posted on Apr 03, 2009


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3 Answers

Steering is swirving my 2000 oldsmobile silhouette van and I hear a knocking sound

I am not familar with this modle vehicle but the knocking could be worn shocker or busher ,wheel baering could be in bad need of ajustment this could cause problem with steering also steering box
track rod end and kingpin and bush also rack and pinon,

Sep 11, 2014 | 2000 Oldsmobile Silhouette

1 Answer

Mondeo st

Lots and lots of things can do this. I would recommend having the knocking sound investigated as the main concern, possibly by a good front-end shop. It could be a c-v joint or bad hub bearing which can allow a wobble in the front brake rotors. This would allow what you call a "judder".

Sometimes rust can form on the brake rotors while the car is parked. This is a weather related problem and if rust is the cause it can wear off to a smooth surface with driving. But a badly pitted rotor will need resurfacing or replacing. It can produce a scuffing sound, but not a knock.

Mar 27, 2014 | 1999 Ford Mondeo

1 Answer

I have a BMW 730i 2003 saloon.I have of late experienced knocking sounds when going over bumpy roads.I was advised to change tie rod ends,lower and upper control arms and stabiliser links and there ha

Hard to say without hearing it but check front stabiliser "d" bushes for wear & check all subframe bolts are tight. Does the noise stop if you press the brake lightly.

Jul 06, 2012 | BMW Cars & Trucks

1 Answer

Knocking sound when going over bumps seems to be coming from near side front shocker

if they are coils its only your coils touching each other.. it only means that the coils are too weak for you car and you have to replace them, or you could tighten them but that makes the ride very uncomfortable when you pass over a bump or in a pot hole.

Mar 07, 2011 | Saab 9 3 Cars & Trucks

2 Answers

Clunking noise from front when going forwards or backing up..jacked front end up..put car in N..spun both wheels and didn't hear any sound..where else can I check

usually the knocking is the drive bearings, or, the shock , i would check the shockers, if your wheels are rotating normally

Aug 06, 2009 | 1993 Ford Tempo

2 Answers

How do I know if lower control arm bushing are bad I have a squeak and a knocking sound when I hit bumps.

raised the vehicle with the front tires off the ground,and grab the front end parts they should move very stiff or not at all,if they move very easy that part is in need of replacement.

Jul 24, 2009 | 2006 Chevrolet Cobalt

1 Answer

Knocking while braking

Warpped rotors can cause alot of funky noises/ vibrations, while driving...make it feel like the car is comming apart, esp while braking....Sounds like it might have damaged the piston in a caliper if you hear a rattle sound...Def take it to mech..Brakes are no joke to wait and see what happens.....If you can, take off wwheellss and remove the caliper, inspect it well...teake the rotors and get new ones, put them on after you clean them( yer new ones) bleed the system if it needs and see if it does it still, if so then its either a caliper/master cylinder [problem...Or you have front suspension damage...let hope for now its just t he rotor!!!! Good luck friend!

May 23, 2009 | Chevrolet Chevy Cars & Trucks

1 Answer


In absolute honesty. Am not a fan of lowering cars coz it knocks **** out of the suspension but........ It sounds like you have something called a CV Joint thats worn it's part of your drive shaft. Find a car park and Drive the car in a circle full lock both left and right this will tell you if im right. I'd Have both sides changed as a matter of course. Steve in the UK take care.

May 13, 2009 | 2005 Nissan Altima

4 Answers

Front knocking when braking

Hello and Hope this helps you and anyone else experiencing this... My Wife and I have a 2005 Pac Trng and ever since we got the vehicle we had been hearing an increasingly loud "thump" on acceleration or over bumpy roads, and a loud "thunk" when initially applying the brake, also, from a high speed slow down, the car would shake in the front end. After 3 service stops at different dealers in the area (all of whom said they could not tell what it was or did not hear anything even when it was audibly noticeable, to "we think it might be the struts" explanation), I decided to do some googling on my own and found an obscure post about a little known issue with the "Lower Front Control Arms". There is a TSB (Technical Service Bulletin on this item as well - Chrysler Pacifica 2004-2005, Service Bulletin #: 0200704 and NHTSA #: 10010533). It seems that even the Chrysler Service Technicians are unaware of this issue which shocks me - Aren't they they ones who should be telling me what it is???!!! We scheduled a service check at the same dealer who didn't hear anything the first time, asked for the manager to take a test drive with me so he could hear what I was hearing, let him drive it on his own, and insisted that he look up the TSB. Since it was covered under warranty, I asked him to "please replace the item we are referring to" - I mean what else do we have to lose? They reluctantly took the car in and the manager called me the next day to tell me that I was exactly right! The Rear Lower Control Arm Bushing was extremely bad. We also had the Front and Rear Motor Mounts replaced to elimante a secondary knocking issue we experienced while accelerating. The overall effect was a much smoother (and Quieter!) take off and stop, with no popping, creaking, or "loose parts" sounds coming from the front end at all! If you are experiencing the "Thumping" or "Knocking" noises during braking or acceleration, or a slow speed "Rumble" (between 5 and 15 mph) in the front end when going over uneven ground or potholes, then you may want to have your dealership or mechanic take a look at these two items (Lower Control Arm Bushings and Motor Mounts). It has nothing to do with Brakes or Struts - unless you have a really crappy mechanic who just tinkered around with those items recently.

Hope this helps. - Gary, Los Angeles, CA

Nov 11, 2008 | 2004 Chrysler Pacifica

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