1988 Lincoln Mark VII Repair Question
Lincoln Mark VII Abs Problem
i answered this already, you cannot re charge. it is the job of the power steering pump if it is hydraulic. if not, it is electrical from a motor on the side. either way, you cannot do it, the system does it. if it has failed, it needs to be replaced
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ABS accum. has to be charged by pump motor, through pressure switch. Brown. anti-lock relay on firewall could be the reason abs/red brake lights are coming on causing hard pedal. Test voltage to relay, pump, pressure switch;etc.. If you can jump tan wire/yellow stripe to dk. brn gray wire / red stripe(wire pin #3-4 in brn. relay) the pump motor should run. Pressure switch reaches a calibrated level of pressure that allows accumulator to work every 3-5 brake pedal presses. Many times hard pedal w/ abs-red brake panel lights on indicate accum. not holding high enough pressure or quite possibly brakes need to be bled to remove air. Check elec. first for 12v. brake lines/system for air leaks. Even wheel/brake sensors.
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