Just spent a few minutes with a neighbors help. The sound is localized inside the cab with the brake pedal its self. There is no unusual sound from the master cylinder. It seems to be the actual linkage through the firewall. I hit it with some wd-40 and it made no change.
scottp8113 wrote:Does it come from the engine area or the actual pedal? mine makes a similar wooshing noise when I push the brake pedal as does my dad's suburban.
It has the whooshing. That I think I understand especially when cold.
It's the bubblley sound I can't seem to locate.
If the connecting rod from the pedal to the cylinder itself was plastic the noise would make sense if it was binding with something else.
The sound really sounds like flatulence.
