Monkeybasher
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| posted on 21/3/08 at 05:40 PM |
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knocking type rubbing noise on tin top
Hi,
2.0l zetec focus 2000
I have a rubbing/knocking noise that is road speed related. I thought it was the brakes, so replaced discs and pads on the front, but its still
there.
The noise goes away when I turn slightly right, 20 degrees plus, but is always there in a straight line or turning left.The noise is nothing to do
with the engine as its noisey coasting in neutral. The noise is there accelerating or braking.
Any thoughts? I was thinking drive shaft next but thought the noise would alter when accelerating and from what I read driveshafts are normally
noisey on tight cornering.
Cheers
Steve
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mark chandler
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| posted on 21/3/08 at 05:50 PM |
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Reverse slowly on full lock and the drive shafts will click if knackered.
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Monkeybasher
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| posted on 21/3/08 at 06:25 PM |
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quote:
Originally posted by mark chandler
Reverse slowly on full lock and the drive shafts will click if knackered.
Nice one, will try that tomorrow. Would this show up the support bearing on the long drive shaft side?
Was wondering if this was knackered
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rusty nuts
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| posted on 21/3/08 at 06:27 PM |
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Anti roll bar drop links , common problem on a Focus .
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froggy
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| posted on 21/3/08 at 06:34 PM |
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o/s/f wheel bearing ,you wont feel any play in it 
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Monkeybasher
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| posted on 21/3/08 at 07:02 PM |
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quote:
Originally posted by rusty nuts
Anti roll bar drop links , common problem on a Focus .
Yes your right, one was knackered I replaced both, this is a regular rubbing knocking
quote:
o/s/f wheel bearing ,you wont feel any play in it
I did check this but as you say no play. This is a knock/rubbing noise rather than a rumble, Is there any way of checking it or should I just change
it, only 20-30 quid ish. Have you had this, I will change it on your reccomendation no pressure
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MikeR
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| posted on 21/3/08 at 07:20 PM |
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i had a similar thing on my Astra.
Solution was a little drastic - i sold it
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rusty nuts
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| posted on 21/3/08 at 08:06 PM |
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If there is no rumbling then I wouldn't change the wheel bearing
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britishtrident
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| posted on 21/3/08 at 08:17 PM |
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First ports of call (assuming it isn't something silly like a wing liner rubbing on a tyre) are wheel bearing or CV joint.
Test for the CV joint is easy slightly accelerating slow speed turn on full lock in both directions
Clack-clack-clack-clack noise indicates a cv joint.
Wheel bearings on FWD cars are more difficult to diagnose 100% --- normally a low dry growl that gets louder as the mileage increases. Louder when
the failing bearing is on the outside when turning.
With this type of bearing failure you won't normally feel any excess fre play until the bearing is actually starting to break up.
[Edited on 21/3/08 by britishtrident]
[Edited on 21/3/08 by britishtrident]
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froggy
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| posted on 21/3/08 at 08:36 PM |
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im in the trade and other than wheel bearing the other thing i come across regularly is wear in the tripode cup that goes into the box on the nearside
which gives a similar noise ,but normallyy if you steer slightly and the noise goes away its wheel bearing
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Monkeybasher
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| posted on 21/3/08 at 09:25 PM |
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Thanks all,
Thanks to the advice I am going to buy a wheel bearing from ebay unless I should be buying a specific brand
clicky
Thanks for the help guys
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Monkeybasher
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| posted on 26/3/08 at 12:05 PM |
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Cheers guys fitted the new wheel bearing and its all quiet now
Although the traction control now cuts in all the time when accelerating, no ABS light though so speed sensor probably ok, strange
I suppose its progress.
Thanks
Steve
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