86 lincoln mark vii lsc lost brakes, turn signals and heater
Asked by Michael Mar 04, 2019 at 08:19 PM about the 1986 Lincoln Mark VII LSC
Question type: Maintenance & Repair
I have a lincoln mark vii lsc and i was driving
and lost my heater and turn signals and my
brake pedal was hard as a rock had no
stopping power at all had to put it in neutral
just to stop
1 Answer
Auto_Centric answered 5 years ago
The MK VII's have a very common hydraulic pressure pod failure.The hydraulic pump maintains a pressure between 14,000 kPa (2030 psi) and 18,000 kPa (2610 psi) in the accumulator and is connected by a high-pressure hose to the booster chamber portion of the hydraulic actuation assembly and a control valve. When the brakes are applied, a scissor-lever mechanism activates the control valve and a pressure, proportional to the pedal travel, enters the booster chamber portion of the hydraulic actuation assembly. This pressure is transmitted through the normally open solenoid valve through the proportioning valve to the rear brakes. The same pressure moves the booster piston against the master cylinder piston, shutting off the central valves in the master cylinder. This applies pressure to the front wheels through the two front, normally open, solenoid valves. I purchase LIncoln's Mk VII, Mk VII, Town Cars 1987-2007