Squealing Brakes
#21
Can you isolate the noise coming from one wheel or another? If so you may be able to spot an issue there. Not likely all wheel will have the same problem. I would check to see that all calipers operate freely and that the caliper pins do not have side play and operated freely in and out.
RyeJag
RyeJag
#22
OK! So, I finally found these on Amazon. I'm awaiting their arrival and dying to see if this will fix my noise problem.
#23
#24
#25
I suspect you have something very basic wrong. Perhaps the wrong pads sold to you? Are you absolutely positively sure you have the anti rattle springs and they are installed correctly?
The correct Jag pads often come with an installed shim and you use anti seize grease and never silicone.
Another thought. Your car has Brembos? Check that one of the pistons is not frozen.
The correct Jag pads often come with an installed shim and you use anti seize grease and never silicone.
Another thought. Your car has Brembos? Check that one of the pistons is not frozen.
#26
I took my car to the mechanic. He reported a combination of problems. One, the Wagner thermo-quiet pads were creating way too much dust and glazing the rotors. To prove the point, we drove the car in the rain, with the rotors wet, and the noise was gone. Second the rotors were warped, front and back. The mechanic swears by genuine Jaguar parts or better than oem replacements. I haven't replaced the pads and rotors yet. I'll report back when I replace with higher quality parts. I'll also let you know the parts I use.
#27
Now that the holidays are over and everything is back to normal, I'm ready to get back at this problem. It's driving me NUTZ! Here's a recap:
-a year after pads were replaced and rotors refinished, I start getting the squeal.
-I try CRC red goop on back of pads, sanding the pads and rotors...nothing
-I completely replace pads and rotors...quiet for a few days, then squeal returns with a vengeance
-I clean, lube, grease everything in the brake system...nothing
-I install rubberized shims on the back of the pads...nothing
Needless to say, I'm completely stumped. Any and all ideas are welcome.
-a year after pads were replaced and rotors refinished, I start getting the squeal.
-I try CRC red goop on back of pads, sanding the pads and rotors...nothing
-I completely replace pads and rotors...quiet for a few days, then squeal returns with a vengeance
-I clean, lube, grease everything in the brake system...nothing
-I install rubberized shims on the back of the pads...nothing
Needless to say, I'm completely stumped. Any and all ideas are welcome.
#28
Now that the holidays are over and everything is back to normal, I'm ready to get back at this problem. It's driving me NUTZ! Here's a recap:
-a year after pads were replaced and rotors refinished, I start getting the squeal.
-I try CRC red goop on back of pads, sanding the pads and rotors...nothing
-I completely replace pads and rotors...quiet for a few days, then squeal returns with a vengeance
-I clean, lube, grease everything in the brake system...nothing
-I install rubberized shims on the back of the pads...nothing
Needless to say, I'm completely stumped. Any and all ideas are welcome.
-a year after pads were replaced and rotors refinished, I start getting the squeal.
-I try CRC red goop on back of pads, sanding the pads and rotors...nothing
-I completely replace pads and rotors...quiet for a few days, then squeal returns with a vengeance
-I clean, lube, grease everything in the brake system...nothing
-I install rubberized shims on the back of the pads...nothing
Needless to say, I'm completely stumped. Any and all ideas are welcome.
#29
XJ8JR,
Sounds to me like you have touched all bases save 1. The calipers.
If you have a stuck or lazy brake piston, most particularly but not limited to Brembos, could it not produce these symptoms ?
BTW if you have Brembos and you have not properly bled the circuit such that air is still in the outside caliper chambers, well you got trouble.
Sounds to me like you have touched all bases save 1. The calipers.
If you have a stuck or lazy brake piston, most particularly but not limited to Brembos, could it not produce these symptoms ?
BTW if you have Brembos and you have not properly bled the circuit such that air is still in the outside caliper chambers, well you got trouble.
Last edited by user 2029223; 01-17-2016 at 10:09 AM.
#31
#33
#34
I just remembered something...one of the last times I was messing with this issue, I pressed the brake pedal while the caliper was off its mount, but still attached to the fluid lines. I noticed that the pistons had not extended evenly, meaning one was fully extended and the other about half way. I figured it had done that because there was nothing to push against, but now I'm wondering if that means that piston had gone bad. Any thoughts?
#36
So both pistons should definitely extended out the same distance? Is there a way to fix this issue, or do I just have to replace the whole caliper?
Forgive my ignorance, I'm afraid I've never messed with brake systems until this problem reared its ugly head, so I'm still learning.
Forgive my ignorance, I'm afraid I've never messed with brake systems until this problem reared its ugly head, so I'm still learning.
Last edited by XJ8JR; 01-26-2016 at 06:56 PM.
#37
Update: i installed a used pair of calipers and guess what? No change whatsoever. Still squealing like a stuck pig. So I unbolted them again, and downed the pedal. On both calipers, one piston extends further than the other, just the same as my original pair (see picture). Is that a lazy piston? If so, I got another defective pair. Any insight would be most appreciated before I start a return claim.
#38
#39