-
Fog horn sound
When barely applying service brakes, I hear a sound similar to a fog horn coming from the front right. Otherwise stops fine and sounds normal other than during light application of brake pedal. (And, No I don’t have a fog horn installed.)
Any idea what this might be?
Jim
-
5 Replies
-
Unless you have an air leak that would show up in a brake check of the service brakes, my guess is the relay valve for the front brakes is making the noise.
If the brake check is OK, and you hold brake system air for a long time it is doing what it is supposed to do, but it may need to be replaced at your convenience. Someone can listen from near the wheel while you apply the service brakes and zero in on where the noise is coming from. The relay valve is fastened to the underside of the floor about centered over the front axles.
-
I’d be more inclined to believe it’s just a vibration between the pad and rotor. Especially if it’s most prevalent under light braking and disappears under heavier braking.
-
Thank you both for your reply’s….
Jim
-
Scratch my idea if the sound only occurs when moving. I agree with the post above.
-
Maybe you ran over a Frog and he is traped there. LOL
Log in to reply.