Suspension, Brakes and Tires Discussion, Ingnition Off-solid brakes IGN On-Sink in Item Specific Cadillac Discussion; I have a 95 STS that has sat for about 2 months. Previously the brakes had been serviced before parking. ...
I have a 95 STS that has sat for about 2 months. Previously the brakes had been serviced before parking. However, they stay firm with the ignition off, but as soon as I start the car they sink and get soft. I also noticed it is almost impossible to come to an immediate halt, but the rotors still look fresh. Any ideas?
Automobile(s): 2015 Mazda3 S GT Hatchback 2013 Kia Optima SXL
Re: Ingnition Off-solid brakes IGN On-Sink
Change your brake fluid. A soft spongy pedal is an indication that your fluid is contaminated. Don't do a simple bleed, do a complete change. If that doesn't work (I am betting it will), I suspect a faulty master cylinder.