Air leak sound when braking. Can't figure it out.
#1
Air leak sound when braking. Can't figure it out.
So I'm at a complete loss right now. I recently installed a new set of pads and fluid on my Evo IX track car before this past weekends NASA event and now whenever I apply the brakes I hear a air leak sound coming from the front of the car. It's not very loud but I can hear it when driving slow. On the street or track its too noisy and everything else drowns out the noise. The brake pedal is still pretty firm, it never goes to the floor, so I know theres pressure in the system and the car still stops on a dime. But I know that sound should not be there as it was never there before. I have checked all brake lines and bleeder valves and nothing is leaking, not air or fluid. None of the lines in engine bay connecting the brake maser cylinder to the ABS module are leaking. My only thought at this point is the gasket between the brake master cylinder and the brake booster could be leaking. I ordered a new gasket, hopefully that'll take care of it. But has anyone else experienced this? Any other suggestions?
#6
EvoM Guru
iTrader: (1)
Are you sure it isn't just the noise of the brake pads touching the rotor? I know some brakes pads make a rubbing "ccchhhhhhhhhhhhh" noise that's not unlike an air leak "hissing" type sound..
#8
EvoM Guru
iTrader: (1)
Right, it doesn't. It just sounds like brake noise. I think you're just hearing the noise the friction material makes against the rotor, and that's it..
#12
Evolved Member
My guess is that you are hearing a little vibration in one of the brakes. If true, this will either go away with use or get worse. If it gets worse you should be able to tell which corner is the problem and give it a little more maintenance attention.
Thread
Thread Starter
Forum
Replies
Last Post
TxFAkuma
Evo X Tires / Wheels / Brakes / Suspension
6
Jul 17, 2014 06:37 PM