I have a leak coming frome my brakes i think it is coming from the tubing coming from the brake booster. Does anyone have a technique on finding a leak of air, I heard of gettin soap and rubbing it along the tubing and looking for it to bubble i must of did it to fast cause i couldn't find the leak i am open to new ideas.

 

spray soapy water on it.

 

thanx found my problem now it's nice and silent in my car once again.