I have a 1993 Buick LeSabre. The rear brakeline cracked due to age/rust and started leaking brake fluild rapidly as the brakes were applied. Will the vehicle loose total braking if the master cylinder is not refilled?

Probably in 2 of your wheels. (Maybe even all 4 but I’m not sure.)

Get it fixed ASAP. If you’re wise, you won’t even drive it to the mechanic.

Thank you. I needed to print this because the police took the car in that condition. I mean he actually drove it to the station to impound it. What a stupid A$$. Now I have more ammunition to use in court. The car was parked off the street so I can perform the repair.