Register Login
FIAT Auto Specialist Team
Reply
 
Thread Tools
Old 28-04-2010   #1
Join Date: May 2009
Posts: 62
Thanks: 1
Trader Rating: 0
United Kingdom 
Rear brakes squealing

The rear brakes on our '58 1.4 Sport (note: discs) started squealing a few weeks ago, intermittently to begin with, usually after turning left for some strange reason, and more recently became permanent when travelling over 50mph.

I would have had them apart to look at them myself but with two other car builds on the go as well as uni work time is tight! So it went into the stealers who reckoned it was dirt build up, cleaned them up, and adjusted the handbrake.

Fine for 20 miles, then the squealing returns.

Its not speed related so I'm pretty sure its just a bad bout of pad squeal which could be solved with a dab of copperslip on the rear of the pad. Any other suggestions? Is it a known problem?
__________________
2010 Locost GSXR - Hillclimb car
2008 Fiat 500 1.4 Sport - Road car
1989 Peugeot 205 Roland Garros - Track/Hillclimb car
AdamP1991 is offline Reply With Quote Quote 
Old 28-04-2010   #2
Join Date: Jan 2008
Location: Nottingham
Posts: 606
Thanks: 32
Trader Rating: 0
Jake_in_notts has donated!
United Kingdom 
Re: Rear brakes squealing

Get a power washer in there and give them a real good clean maybe its build up of rubbish.
The take it to the dealer if they still scream at you !
__________________
Fiat 500 1.3 Multijet POP, Bossa Nova White, 15" multispoke, Chrome Pack, Auto Climate Control, ESP, Split Folding Rear Seats with Headrests, B&M.
Jake_in_notts is offline Reply With Quote Quote 
Old 28-04-2010   #3
Join Date: May 2009
Posts: 62
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: Rear brakes squealing

Sorry if I wasnt clear, the dealer's already had it all apart and cleaned everything (including my wallet of 60). So we can safely assume its not muck build up.
__________________
2010 Locost GSXR - Hillclimb car
2008 Fiat 500 1.4 Sport - Road car
1989 Peugeot 205 Roland Garros - Track/Hillclimb car
AdamP1991 is offline Reply With Quote Quote 
Old 28-04-2010   #4
Join Date: Dec 2005
Posts: 1,239
Thanks: 62
Trader Rating: 0
Murano16v has donated!
United Kingdom 
Re: Rear brakes squealing

If the pads are free to move, could be a sticky caliper piston. I've had that in the past on older cars.
__________________
Murano16v is offline Reply With Quote Quote 
Old 28-04-2010   #5
Join Date: May 2009
Posts: 62
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: Rear brakes squealing

Quote Originally Posted by Murano16v View Post
If the pads are free to move, could be a sticky caliper piston. I've had that in the past on older cars.
However there's no evidence of this while driving. It brakes evenly and neither side stays cool or heats up over the opposite side. I would also expect it to go away for a while after hard braking, but it returns immediately after.

Thanks anyway, they're all ideas to tick off the list.
__________________
2010 Locost GSXR - Hillclimb car
2008 Fiat 500 1.4 Sport - Road car
1989 Peugeot 205 Roland Garros - Track/Hillclimb car
AdamP1991 is offline Reply With Quote Quote 
Old 28-04-2010   #6
STOP! Hammer time!
 
306maxi's Avatar
Join Date: Mar 2008
Location: The Welsh Riviera
Posts: 23,716
Thanks: 845
Trader Rating: 0
306maxi has donated!
United Kingdom 
Re: Rear brakes squealing

Quote Originally Posted by Jake_in_notts View Post
Get a power washer in there and give them a real good clean maybe its build up of rubbish.
The take it to the dealer if they still scream at you !
Noooooo! Don't pressure wash your brakes!
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

306maxi is offline Reply With Quote Quote 
Old 28-04-2010   #7
STOP! Hammer time!
 
306maxi's Avatar
Join Date: Mar 2008
Location: The Welsh Riviera
Posts: 23,716
Thanks: 845
Trader Rating: 0
306maxi has donated!
United Kingdom 
Re: Rear brakes squealing

Quote Originally Posted by AdamP1991 View Post
However there's no evidence of this while driving. It brakes evenly and neither side stays cool or heats up over the opposite side. I would also expect it to go away for a while after hard braking, but it returns immediately after.

Thanks anyway, they're all ideas to tick off the list.
100hp Panda's have has issue with rear brakes squealing, don't remember if there was any particular fix for it though.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

306maxi is offline Reply With Quote Quote 
Old 28-04-2010   #8
Join Date: Dec 2005
Posts: 1,239
Thanks: 62
Trader Rating: 0
Murano16v has donated!
United Kingdom 
Re: Rear brakes squealing

Quote Originally Posted by 306maxi View Post
100hp Panda's have has issue with rear brakes squealing, don't remember if there was any particular fix for it though.
Mine does this , but only in reverse, so basically I just ignore it. I find trips to dealers more trouble than they are worth.
Thanks Nasrouz thanked for this post
__________________
Murano16v is offline Reply With Quote Quote 
Old 29-04-2010   #9
Um......
 
jnoiles's Avatar
Join Date: Feb 2008
Location: London
Posts: 2,376
Thanks: 106
Trader Rating: 0
jnoiles has donated!
United Kingdom 
Re: Rear brakes squealing

On a long drive through france I had this on my drivers side rear brake. Squealing that got worse the faster you went. I pulled into a motorway services and noticed there was more heat coming from that disc than the other side. I took the wheel off, thumped the caliper a few times and watched all the crud fall out. It was fine after that.

Sounds like the dealer has done the same. Or said they did? And you're not noticing any excess heat from that corner. Hmm. Is the disc ok? Not warped or cracked? I assume the dealer would have noticed if the bearing was shot?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

jnoiles is offline Reply With Quote Quote 
Old 29-04-2010   #10
Join Date: Jul 2009
Location: Cairo
Posts: 87
Thanks: 2
Trader Rating: 0
Egypt 
Re: Rear brakes squealing

okay wait for the brakes to cool down.. maybe first thing in the morning and wash it with water.. you'll be amazed by the huge amount of rubbish your gunna see.. (dont wash while the pads are hot they blend someway)..

my friend once advised.. & it worked..
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Nasrouz is offline Reply With Quote Quote 
Old 29-04-2010   #11
Join Date: May 2009
Posts: 62
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: Rear brakes squealing

Quote Originally Posted by jnoiles View Post
On a long drive through france I had this on my drivers side rear brake. Squealing that got worse the faster you went. I pulled into a motorway services and noticed there was more heat coming from that disc than the other side. I took the wheel off, thumped the caliper a few times and watched all the crud fall out. It was fine after that.

Sounds like the dealer has done the same. Or said they did? And you're not noticing any excess heat from that corner. Hmm. Is the disc ok? Not warped or cracked? I assume the dealer would have noticed if the bearing was shot?
The pitch of the sound doesn't vary with speed, which is what makes me think its more likely to be a vibration. Disc definitely isnt warped
__________________
2010 Locost GSXR - Hillclimb car
2008 Fiat 500 1.4 Sport - Road car
1989 Peugeot 205 Roland Garros - Track/Hillclimb car
AdamP1991 is offline Reply With Quote Quote 
Old 29-04-2010   #12
STOP! Hammer time!
 
306maxi's Avatar
Join Date: Mar 2008
Location: The Welsh Riviera
Posts: 23,716
Thanks: 845
Trader Rating: 0
306maxi has donated!
United Kingdom 
Re: Rear brakes squealing

You sure it's the brakes then? I think some Panda people had issues with exhausts and handbrake cables.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

306maxi is offline Reply With Quote Quote 
Old 14-06-2010   #13
Join Date: Feb 2008
Location: Milton Keynes
Posts: 11
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Rear brakes squealing

Hi all
my 1.4 sport has also developed an intermittent squeak, although it's more of a whistle. Strangely the noise also is louder/ higher pitched when going over 50mph and when turning left!

The noise definitely is coming from he passenger side rear wheel and is like a metal whistle sound.

I'm no mechanic so took it to the dealers, who first lubricated the brushes, which made no difference and then after another ride out thought it could be the wheel bearings.

On further tests at the service this week I'm told the garage think it's dirty brake discs/ pads ( which are not covered on warranty) :-(

Seems like a few people have this issue!
my car is 2 years old with 17,000 miles, so I feel a bit a Annoyed that I've had a few issues with it now (my 10 year old punto ran brilliantly!)

We'll see if the squeak is still there when I collect the car tomorrow....
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

mare is offline Reply With Quote Quote 
Old 15-06-2010   #14
fast Fiat fan
 
RobW's Avatar
Join Date: Mar 2002
Location: Surrey, United Kingdom.
Posts: 6,039
Thanks: 265
Trader Rating: 0
RobW has donated!
United Kingdom 
Re: Rear brakes squealing

brake noise is due to vibration, and it happens all the time but sometime you hear it

it really isn't anything to worry about, try using your brakes harder as if the pads glaze it can be noisier
__________________
current car http://www.fiatforum.com/members-mot...nello-red.html
the true flagship Fiat that's a bit Alfa and a bit Abarth
RobW is offline Reply With Quote Quote 
Old 15-06-2010   #15
Moderator
Join Date: Mar 2010
Location: Dorset
Posts: 8,371
Thanks: 881
Trader Rating: 0
United Kingdom 
Re: Rear brakes squealing

Had this problem at some time or other on practically every car I've ever owned.

Almost always caused by excessive friction between the pads and the reaction frames (FIAT's workshop documentation refers to these as 'Brake Caliper Brackets'). Corrosion is the usual cause but muck and brake dust are also culprits.

Cleaning only seems to provide a short term fix - the solution is to apply high temperature copper grease to the (cleaned) working surfaces of the reaction frames so that the pads can slide freely.

This obviously means stripping down the brakes & I usually remove the reaction frames to do this - I can then easily wirebrush the rust and crud off and I don't get copper grease on the disks.

I've done this as part of the annual service on all my cars for the past 20 years and it's amazing how bad these parts can get after just one winter.
__________________


"Just 'cos you're not paranoid, doesn't mean they're not out to get you"

jrkitching is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(G) Squealing Brakes Highlander 500 8 11-11-2008 23:30
(T) Droning/squealing brakes... Doodlebug Panda 11 05-06-2008 17:51
(T) Squealing brakes ger Punto (Mk2/2b) 2 05-09-2007 21:59
(T) squealing brakes HornetUK Punto (Mk2/2b) 3 30-08-2004 00:21
(T) Squealing brakes Helz Bravo / Brava 7 16-02-2004 03:50