My son's 1989 420SEL is having an issue. Sometimes the brakes work normal then once in a while the pedal needs to go to the floor to stop the car. At first I thought maybe brake booster. But if the booster was bad, wouldn't the problem be consistent? Or could this be a vacuum issue?

Thanks, Mark

__________________
---------------------------
No matter how many times you explain it to me, I'm still right.....Surf-n-Turf