a mustang does'nt use an anti-lock unit like a markVII
a soft pedal is caused by lack of pressure. the anti-lock unit is mad
up of several pieces. a master cylinder, a valve block, a
accumulator, a pump, and a high pressure switch. it also has tw
relays. a bad pressure switch or accumulator could cause thi
problem. it could also be that one or both relays are no good
> Anonymouswrote
For a few years the brake lights on my 90 LIncoln Mark V11 woul
com
> on during very hot weather but it never affected the brak
performance
> When it cooled off, they'd go off. They came on last week and
los
> what seems like the power brakes. They are very cushiony and I hav
t
> press very hard to stop the car. They replaced the ABS unit with
> mustang unit but it only slightly helped. The car is stil
undrivabl
> safely. Any suggestions???