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1991 Lincoln LSC intermittant brakes
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Karenscar
New User
Sep 17, 2013, 11:45 AM
Post #1 of 4
(1683 views)
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1991 Lincoln LSC intermittant brakes
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1991 Lincoln LSC 5.0 230,000 miles Was losing brake fluid for several months before brakes went out.But started to lose brakes even when fluid was full. Replaced one of the two relays, which fixed the problem temporarily but now have intermittant loss of brakes. It is not losing brake fluid now, but have not driven it much due to the brake issue. Any suggestions would be appreciated.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 17, 2013, 12:03 PM
Post #2 of 4
(1677 views)
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Re: 1991 Lincoln LSC intermittant brakes
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What "relays" are you talking about? Best guess is you still have a leak that somehow quit and if your brake pedal just went to floor before you fixed that not just adding fluid that can wreck a master cylinder and those can be intermittent as in goes to the floor then works again later maybe or not.
Sport - why the heck did you ignore losing brake fluid for a day when noticed never mind longer? Any chance non brake fluid was ever added like oil or transmission fluid? If so you won't like how much has to be done to correct that,
T
(This post was edited by Tom Greenleaf on Sep 17, 2013, 12:04 PM)
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Karenscar
New User
Sep 17, 2013, 1:11 PM
Post #3 of 4
(1664 views)
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Re: 1991 Lincoln LSC intermittant brakes
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The power brake relay located on the firewall was replaced, the anti-lock relay has not been replaced. Could the electronic controller which monitors the system be the cause of the intermittant brakes?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 17, 2013, 2:21 PM
Post #4 of 4
(1657 views)
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Re: 1991 Lincoln LSC intermittant brakes
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Where was the fluid going? What is the point in anything else if you don't know or haven't fixed that? Generally leaks in brake fluid don't heal but a maybe if a caliper is now on a new spot from pad wear it's possible I guess.
One problem with brake fluid is the wetness will wash away with just driving in rain water but you would look for evidence. Most likely for a 1991 is a rusted brake line, flex hose or if this version is vacuum booted sometimes (rare) the master cylinder could leak into it and go unseen but would mess up the boost action if it filled it up.
There's a maybe if anyone still has one that an ABS code exists but you have to discount any of that until you know where it was leaking - that's first or don't drive this thing,
T
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