Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




11505 posts

Uber Geek
+1 received by user: 5211

Trusted

Topic # 180791 22-Sep-2015 10:21
Send private message

Our 2014 Nissan Altima has developed a worsening problem, that is squealing brakes whilst reversing. It started at approx. 3,000 KMs, the car has now travelled approx. 8,000KMs and the squeal is very loud. We have a 50meter driveway and its
is separated from our home by other homes, this morning my wife took it to work and while our drapes were still drawn I could hear the car at the road end of the drive and the squeal was very loud.

Now the local Nissan Dealer has told me this is not an issue it is just dust on the brakes. My first reaction and continuing reaction to that is bollocks. They told me to take to a top of a hill and ride the brakes and get them hot and this will burn it off, again I have the reaction of bollocks, as it did it after a trip to Auckland and back and a trip over the Rimutaka Hill Road in the weekend, that is enough to get any brakes hot.

I come from a family with Motor Engineering history and my instinct is there is something wrong with these brakes, maybe faulting Rotor, Discs, Shims. They have been assembled wrong but I really don't know. Brakes are however kind of an important
safety feature of a car and I am getting increasingly unsettled by this.

I feel I am being fobbed off by the dealer. Before I go in guns blazing so to speak and *cough* brake some heads, what are the thoughts of the fine folks here.

Foot note the squeal is only present in reverse.





Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2 | 3
427 posts

Ultimate Geek
+1 received by user: 81


  Reply # 1391709 22-Sep-2015 10:28
Send private message

Have you checked the pads to see how worn they are?
Could be the wear indicator tab rubbing on the disc if they are low.

Other possible causes:
Small stone or grit of some kind stuck in the pad.
Glazed pads often caused by lots of round town light braking (cooking the surface can help remedy this).





5231 posts

Uber Geek
+1 received by user: 2472


  Reply # 1391710 22-Sep-2015 10:31
One person supports this post
Send private message

You are being fobbed off by the dealer.  It's probably not a serious issue, and could probably be fixed by either switching pads left to right wheel, or new pads, neither an expensive job.  The fact that they aren't listening to you re a warranty issue sucks big time.  Shame on that Nissan dealership - that's very poor service IMO, and doesn't bode well for what their response may be when other issues arise over the period of the warranty. 

 
 
 
 




11505 posts

Uber Geek
+1 received by user: 5211

Trusted

  Reply # 1391711 22-Sep-2015 10:33
Send private message

At only 8,000KMs and started at 3,000KMs I cant really see it being worn pads We purchased it new in November 2014. They would needed to have been driven with the park brake on constantly or Nissan uses really soft brake pads.
I had my brother get under the car and visually check and he reckons all looks normal. There is no brake pedal pulse and brake efficiency seems normal.




Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


423 posts

Ultimate Geek
+1 received by user: 391


  Reply # 1391715 22-Sep-2015 10:49
Send private message

As mentioned already, it could be caused by a number of issues.

1) Wear indicators.   (though given the info provided above, this seems unlikely)
2) Glazed pads/discs.  (still possible after a run over Rimutaka hill depending on how aggressively the pedal was applied, but less likely)
3) Stone or grit caught and rubbing.  (would expect to have been noticed on a visual inspection)
4) Natural harmonic vibration between pad and calliper piston.  (normally addressed by way of a shim)

From personal experience, persistent squealing is usually caused by 4.

I've found that the best solution for this is to remove the pads and coat the back of them with a damping material.  You can get spray-on solutions for this, or simply smear some copper grease on the back (BACK!!!) of the pads and reassemble.

It's surprising that the dealership hasn't done this already as a first step in troubleshooting the matter for you.

2499 posts

Uber Geek
+1 received by user: 927

Subscriber

  Reply # 1391717 22-Sep-2015 10:51
Send private message

I would be inclined to take it to another Nissan dealer for assessment. There's a number of things that can cause brake squealing, most are not particularly major, but are annoying nonetheless. Some seem to be just too tricky to address, and cause no issue, so are just an irritation to put up with. Different pads may sometimes reduce or resolve the noise in these cases.

That said, if it is only in reverse, how sure are you it is the brakes?




Windows 7 x64 // i5-3570K // 16GB DDR3-1600 // GTX660Ti 2GB // Samsung 830 120GB SSD // OCZ Agility4 120GB SSD // Samsung U28D590D @ 3840x2160 & Asus PB278Q @ 2560x1440
Samsung Galaxy S5 SM-G900I w/Spark



11505 posts

Uber Geek
+1 received by user: 5211

Trusted

  Reply # 1391724 22-Sep-2015 10:59
Send private message

Inphinity: I would be inclined to take it to another Nissan dealer for assessment. There's a number of things that can cause brake squealing, most are not particularly major, but are annoying nonetheless.

That said, if it is only in reverse, how sure are you it is the brakes?


I have tested reversing with out touching the bake pedal.. no sound, as soon as you tough the brake pedal it squeals, I have doubled checked that the pedal activated park brake is fully releasing and it would appear so both visually
and by starting the car moving both forward and reverse with no acceleration. My brother also checked the rear suspensions assemblies and front assemblies.




Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


2237 posts

Uber Geek
+1 received by user: 208


  Reply # 1391726 22-Sep-2015 11:00
Send private message

Inphinity: I would be inclined to take it to another Nissan dealer for assessment. There's a number of things that can cause brake squealing, most are not particularly major, but are annoying nonetheless. Some seem to be just too tricky to address, and cause no issue, so are just an irritation to put up with. Different pads may sometimes reduce or resolve the noise in these cases.

That said, if it is only in reverse, how sure are you it is the brakes?


Indeed. I had one that did. Mixture of engine mounts and belt. Reverse, engine rotated a bit much on soft mounts, belt tension changed - slippage squeal on more than idle.

2280 posts

Uber Geek
+1 received by user: 229


  Reply # 1391727 22-Sep-2015 11:00
Send private message

MikeB4: I had my brother get under the car and visually check and he reckons all looks normal. There is no brake pedal pulse and brake efficiency seems normal.


I had some fine pea gravel from road sealing stuck between the disc and the rear shield. The only way to see it was to remove the wheels. The only way to remove all of it was partially pulling the disk rotor off the hub.

2499 posts

Uber Geek
+1 received by user: 927

Subscriber

  Reply # 1391731 22-Sep-2015 11:04
Send private message

MikeB4:
Inphinity: I would be inclined to take it to another Nissan dealer for assessment. There's a number of things that can cause brake squealing, most are not particularly major, but are annoying nonetheless.

That said, if it is only in reverse, how sure are you it is the brakes?


I have tested reversing with out touching the bake pedal.. no sound, as soon as you tough the brake pedal it squeals, I have doubled checked that the pedal activated park brake is fully releasing and it would appear so both visually
and by starting the car moving both forward and reverse with no acceleration. My brother also checked the rear suspensions assemblies and front assemblies.


Ah, sorry, I had initially read your post as the brakes squeaking the whole time while reversing (regardless of whether they were applied or not). If it's only when the brakes are applied, it's probably just due to the way the pads/rotors have worn in. 'going against the grain' so to speak in reverse. If so, replacing the pads, and/or resurfacing the rotors will resolve the issue - but it could return if similar wear patterns develop in the replaced/resurfaced items.

If you brake heavily in reverse does it still happens, or only on light braking?




Windows 7 x64 // i5-3570K // 16GB DDR3-1600 // GTX660Ti 2GB // Samsung 830 120GB SSD // OCZ Agility4 120GB SSD // Samsung U28D590D @ 3840x2160 & Asus PB278Q @ 2560x1440
Samsung Galaxy S5 SM-G900I w/Spark



11505 posts

Uber Geek
+1 received by user: 5211

Trusted

  Reply # 1391733 22-Sep-2015 11:07
Send private message

Bung:
MikeB4: I had my brother get under the car and visually check and he reckons all looks normal. There is no brake pedal pulse and brake efficiency seems normal.


I had some fine pea gravel from road sealing stuck between the disc and the rear shield. The only way to see it was to remove the wheels. The only way to remove all of it was partially pulling the disk rotor off the hub.


When I finally get them to agree to look at it I will ask that. I am also soon to start discussing the Consumer Guarantees Act with them




Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 




11505 posts

Uber Geek
+1 received by user: 5211

Trusted

  Reply # 1391735 22-Sep-2015 11:14
Send private message

Inphinity:
MikeB4:
Inphinity: I would be inclined to take it to another Nissan dealer for assessment. There's a number of things that can cause brake squealing, most are not particularly major, but are annoying nonetheless.

That said, if it is only in reverse, how sure are you it is the brakes?


I have tested reversing with out touching the bake pedal.. no sound, as soon as you tough the brake pedal it squeals, I have doubled checked that the pedal activated park brake is fully releasing and it would appear so both visually
and by starting the car moving both forward and reverse with no acceleration. My brother also checked the rear suspensions assemblies and front assemblies.


Ah, sorry, I had initially read your post as the brakes squeaking the whole time while reversing (regardless of whether they were applied or not). If it's only when the brakes are applied, it's probably just due to the way the pads/rotors have worn in. 'going against the grain' so to speak in reverse. If so, replacing the pads, and/or resurfacing the rotors will resolve the issue - but it could return if similar wear patterns develop in the replaced/resurfaced items.

If you brake heavily in reverse does it still happens, or only on light braking?


I will try the heavy reverse brake when my wife gets home with it later tonight.




Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


2479 posts

Uber Geek
+1 received by user: 534


  Reply # 1391818 22-Sep-2015 12:22
Send private message

if the pads have worn a bit funny with a lip this will happen.

I had this on my 4 pots. Took the pads out, removed the excess material, they are now really quiet.

I would be telling them to take the pads out and actually look at them.

Noise like this is not normal or acceptable.




I know a little more than nothing but not much...

251 posts

Ultimate Geek
+1 received by user: 115


  Reply # 1391915 22-Sep-2015 13:55
Send private message

I'm with a lot of the other posters - take the pads off for a visual inspection.

Trying to think about it logically.  What can cause squealing.  Metal on Metal.  Something scraping against something it should not.  Something not mating correctly or uneven pressures.

Because it only happens when it is rotating in one direction it does not seem likely it is the rotor.  It does not seem likely it would be pad wear.  Perhaps completely wrong pad fitted?

Perhaps a pad wearing faster on the leading edge.  This would imply it was getting more pressure on the leading edge or was not mating with the rotor correctly.  A visual inspection of the pad would give big hints.

Perhaps when the pads were changed there were some spacers, and not all of the spacers were put in, causing one side/edge of the pad to get more/less pressure.  You could compare the pad on the right side with the left to see if there are spacers missing.

Perhaps if the pad was not "flat" into its fitting you might get a different result reversing rather than travelling forward.  Or if the pressure on the pad was not even.  Perhaps you have a multi-pot caliper, and not all the pots are applying pressure evenly.  Maybe one of the pots needs to be cleaned out or has crap stuck in it causing one pot to apply more pressure than the others.

I guess there is a slim chance some contamination has got into the brake line, and into an individual pot causing uneven pressure on the pad.


I think it needs to be ripped apart.  Visually inspected.  Cleaned.  Compared to the working side (I assume this only happens on one side) and then put back together.




Try my latest project, a Cisco type 5 enable secret password cracker written in javascript!

Banana?
4116 posts

Uber Geek
+1 received by user: 899

Subscriber

  Reply # 1391929 22-Sep-2015 14:17
One person supports this post
Send private message

MikeB4: [Snip}
Now the local Nissan Dealer has told me this is not an issue it is just dust on the brakes. My first reaction and continuing reaction to that is bollocks. They told me to take to a top of a hill and ride the brakes and get them hot and this will burn it off, again I have the reaction of bollocks, as it did it after a trip to Auckland and back and a trip over the Rimutaka Hill Road in the weekend, that is enough to get any brakes hot.
[...}



Maybe a trip down the Rimutakas in reverse?

Joking of course, this is definitely something I'd be wanting the dealer to sort quick smart. The car is practically brand new, and it sounds like a pretty simple fix. You'd hope that they'd just do it.



11505 posts

Uber Geek
+1 received by user: 5211

Trusted

  Reply # 1391963 22-Sep-2015 14:52
Send private message

After a loooooooooooooooooong hmmmm discussion with the service manager, the car is booked in for monday to have a thorough look at the brakes and or anything else that may be causing it. As I was talking to them I though that maybe the Foot activated/deactivated park break was leaving the pads at the rear slightly engaged
but the front pads that do most of the work whilst driving are OK. They are going to look at this and everything else.

Will report back on what happens.






Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


 1 | 2 | 3
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

$3.74 million for new electric vehicles in New Zealand
Posted 17-Jan-2018 11:27


Nova 2i: Value, not excitement from Huawei
Posted 17-Jan-2018 09:02


Less news in Facebook News Feed revamp
Posted 15-Jan-2018 13:15


Australian Government contract awarded to Datacom Connect
Posted 11-Jan-2018 08:37


Why New Zealand needs a chief technology officer
Posted 6-Jan-2018 13:59


Amazon release Silk Browser and Firefox for Fire TV
Posted 21-Dec-2017 13:42


New Chief Technology Officer role created
Posted 19-Dec-2017 22:18


All I want for Christmas is a new EV
Posted 19-Dec-2017 19:54


How clever is this: AI will create 2.3 million jobs by 2020
Posted 19-Dec-2017 19:52


NOW to deploy SD-WAN to regional councils
Posted 19-Dec-2017 19:46


Mobile market competition issues ComCom should watch
Posted 18-Dec-2017 10:52


New Zealand government to create digital advisory group
Posted 16-Dec-2017 08:47


Australia datum changes means whole country moving 1.8 metres north-east
Posted 16-Dec-2017 08:39


UAV Traffic Management Trial launching today in New Zealand
Posted 12-Dec-2017 16:06


UFB connections pass 460,000
Posted 11-Dec-2017 11:26



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.