brake problem
Thread Starter
Instructor
Joined: Dec 2006
Posts: 114
Likes: 0
From: Florida
brake problem
sorry i keep asking question lol...but anyways the last couple days my brakes has been acting up...well in the mornings when i start the car the brake pedal goes all the way down but still has brake force....so the problem is here..is whne the car is at 190ish degree the brakes get really hard and sensitave...but when i drive the car to cool the motor off to about 160ish(i have a 160 thermostat by the way if yoru wondering)..the brakes start to get loose and spongey...i dont know what is going on...and also the brake fluid is black wit oil type bubbles......help?
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Start with a full flush of the system. Use a good synthetic like Valvoline synthetic. Buy a set (4) of "Speedbleeders". It makes it an easy job. After the system is flushed, if the problem continues, you will next have to look at your master cylinder.
Good luck.
Good luck.
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
brakes
brake fluid is supposed to be a very light yellow to clear.the darker the fluid, the more urgent it is that you flush the brake fluid out. Use a bleeder, don't try to pump it out with the pedal. You can install the bleeder, and go to all corners and bleed the contaminants out till the fluid turns clear again. it may take almost a gallon by the time you flush the black out.
You will most certainly have to change the brake master cylinder anyway, so get one, and install it after you have flushed the system.
You will most certainly have to change the brake master cylinder anyway, so get one, and install it after you have flushed the system.
