991

Terrible Brake Noise

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #16  
Old 04-17-2016, 12:34 PM
PorscheCrazy's Avatar
Registered User
Join Date: Dec 2012
Location: New York
Posts: 1,496
Rep Power: 91
PorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond reputePorscheCrazy has a reputation beyond repute
not acceptable - sounds like you are in a dentist's chair --- eeek !
 
  #17  
Old 04-17-2016, 01:20 PM
CSK 991 C4S's Avatar
Registered User
Join Date: Aug 2015
Location: Dickson TN
Age: 54
Posts: 103
Rep Power: 13
CSK 991 C4S is on a distinguished road
I get that once in a while right when I'm coming to a stop. I guess it doesn't bother me that much.
 
  #18  
Old 04-17-2016, 09:25 PM
eldertec's Avatar
Registered User
Join Date: Dec 2011
Location: Ellicott City
Posts: 953
Rep Power: 60
eldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to beholdeldertec is a splendid one to behold
Originally Posted by CSK 991 C4S
I get that once in a while right when I'm coming to a stop. I guess it doesn't bother me that much.
Me too.
2013 4S
 
  #19  
Old 04-18-2016, 09:30 PM
dphouse's Avatar
Registered User
Join Date: May 2007
Location: los angeles
Posts: 241
Rep Power: 26
dphouse is on a distinguished road
Originally Posted by GTW4CG
Here's what works for me: Every time I wash the car, I thoroughly hose out around the disks and the brake calipers. The squealing stops until the next time the brakes get all dirty again.
My dealer blames tire shine. Sounds like a bs excuse and my brakes squeak always on soft brakes. It goes away after a good wash. Really annoying if you ask me.
 
  #20  
Old 04-20-2016, 07:52 AM
Mr.Boon's Avatar
Registered User
Thread Starter
Join Date: May 2013
Posts: 121
Rep Power: 15
Mr.Boon is on a distinguished road
This is a photo of my front disc brake. Other side looks the same. Seems to me like there is some kind of damage to it, and probably the cause of my problems no?

Click image for larger version

Name:	OJwhW3b.jpg
Views:	20
Size:	828.1 KB
ID:	539164

Dealer however says it's normal, but I don't believe him anymore. Car has just over 30k km on the clock, and never been used on track.
 
  #21  
Old 04-20-2016, 02:46 PM
mtony's Avatar
Registered User
Join Date: Feb 2010
Location: ATL
Posts: 360
Rep Power: 60
mtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond reputemtony has a reputation beyond repute
Certainly doesn't look right. Have you had brake work done in the past? Could the outside pad have been installed backwards?
 
  #22  
Old 04-21-2016, 03:35 AM
Mr.Boon's Avatar
Registered User
Thread Starter
Join Date: May 2013
Posts: 121
Rep Power: 15
Mr.Boon is on a distinguished road
The car has had a service before, but they didn't change the pads. They might have cleaned them though. Not sure.
 
  #23  
Old 04-26-2016, 03:35 PM
BradB's Avatar
Registered User
Join Date: Feb 2011
Location: St. Louis
Posts: 563
Rep Power: 41
BradB is a name known to allBradB is a name known to allBradB is a name known to allBradB is a name known to allBradB is a name known to allBradB is a name known to all
Have you found a solution yet?

Brake noises are caused by vibration. On the 991 the pads are held in place only by the spring clips in the back of the caliper. Various points of the pad backing plate touch this and should be cleaned and lubed with hi-temp brake parts grease. This stops the vast majority of noises.

The OEM pads come with a noise suppression plate on the back of the pad. This helps reduce noise by itself but troublesome squeaks can be remedied with the additional application (spray or tube) of a brake noise product to the back of the pad. It's sticky and helps stop the pad from vibrating in place.

Finally, pad glazing can cause noises especially at low speed. Removing and sanding (roughing up) the face of the pad should fix this.

Have you tried any/all of these methods?
 
  #24  
Old 04-28-2016, 11:19 PM
GTW4CG's Avatar
Registered User
Join Date: Dec 2015
Location: South Puget Sound Washington
Posts: 7
Rep Power: 0
GTW4CG is on a distinguished road
Try a $3.99 can of brake cleaner and spray down the disks to get the gunk off.
 
  #25  
Old 04-29-2016, 09:13 AM
Pmorritt's Avatar
Registered User
Join Date: Mar 2016
Location: San Rafael
Age: 76
Posts: 116
Rep Power: 16
Pmorritt is just really nicePmorritt is just really nicePmorritt is just really nicePmorritt is just really nice
Actually the orig video leaves a lot to be desired. Firstly, tHe guy is spraying brake cleaner on the pad and is getting that spray on the paint! Brake cleaner will eat into the paint. No good. Then he is smears wayyyy too much paste onto the back of the pads. A better solution is to use a Very light coating of Copper Paste on the pad backs. I have used it for years on my motorcycles. It comes in a tube and will last you years.
 
  #26  
Old 04-06-2021, 03:50 PM
Rolf One's Avatar
Registered User
Join Date: Mar 2021
Age: 43
Posts: 1
Rep Power: 0
Rolf One is an unknown quantity at this point
Thank You!!

Originally Posted by PorscheCrazy

This worked for me today!! Who ever you are, you ARE the man!!!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jano4
Aston Martin
8
11-21-2020 09:24 AM
Ryane8182
997 Turbo / GT2
14
08-10-2014 05:16 AM
snowrider204
Lamborghini
5
01-12-2010 02:35 PM
ceddy
996
4
02-10-2006 05:17 PM
asun999
996
1
01-07-2004 09:31 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Terrible Brake Noise



All times are GMT -6. The time now is 02:55 PM.