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    #1

    Brake prob

    The brakes in my merc arent working to well lately, you relly have to push the pedal to get it to stop in a decent distance, also if im sitting at a lite afeter say 50 seconds the car will try to creep away and i have to push the pedal harder,
    today i had to stop fast beacuas some one decided to slam on ther brakes at the last min to turn, and my brakes dident even lock up even tho i was pushing full force on the pedal,
    the pads rotors and drums are all in good condition, no scores or anything on the rotors and lots of meat left on the pads,
    could it have something to do with the master cylinder or booster? or maybie the calipers?
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    #2
    leaky wheel cylinder, line ready to blow, dead master cylinder could all cause this

    1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
    2006 Lincoln Town Car Signature. Stock for now
    1989 Ford F-250 4x4 much much more to come, sefi converted so far.
    1986 Toyota pickup with LSC wheels and 225/60/16 tires.
    2008 Hyundai Elantra future Revcon toad
    1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

    please be patient, rebuilding an empire!

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      #3
      ok thanks man, ill check thoes things out and see what i find

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        #4
        ya, make sure all your flex lines are are in good cond, since they can expand under load.

        1981 Mercury Marquis Brougham 2-Door 302/ 5-speed -special blend (GMGT)
        1987 Lincoln Mark VII 5-speed (Errand runner)
        1989 Mercury Grand Marquis (Base Runner)
        2007 Lincoln Town Car Signature Limited (Hustlyn)
        2011 Ford Crown Victoria Police Interceptor (Down with O.P.P)

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          #5
          That sounds like my brakes. When I get my oil changed i'm gonna have my brakes bled too to see if that helps, maybe have them check the wheel cylinders. If they do that ad it still sucks at breaking, i'll replace the master cylinder and go from there.

          Does you car make any squeaks or noises when you hit the brakes hard? Mine doesn't.
          88 Town Car (wrecked, for sale)
          Walker OEM duals with muffler deletes

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            #6
            nope no noises

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              #7
              my lincoln did the same thing before i changed my master, how is your resivoir?

              1981 Mercury Marquis Brougham 2-Door 302/ 5-speed -special blend (GMGT)
              1987 Lincoln Mark VII 5-speed (Errand runner)
              1989 Mercury Grand Marquis (Base Runner)
              2007 Lincoln Town Car Signature Limited (Hustlyn)
              2011 Ford Crown Victoria Police Interceptor (Down with O.P.P)

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                #8
                you're losing pressure somewhere, either an internal leak in the MC, or an external leak from a line or wheel cyl. The creeping at stop lights is the key. See if the booster between the MC and the booster is wet looking. If it is, the MC is fried. Replace it and the booster together, any fluid in the booster will kill it, and you can't get a warranty on a booster without doing the MC at the same time.
                86 Lincoln Town Car (Galactica).
                5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                91 Lincoln Mark VII LSC grandpa spec white and cranberry

                1984 Lincoln Continental TurboDiesel - rolls coal

                Originally posted by phayzer5
                I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                Everything looks like voodoo if you don't understand how it works

                Comment

                  #9
                  the reservior was a bit low, but not relly that low, the master looks fairly new but that dosent mean anything, the rear wheel cylinders where new but ill check them, and all the flex hoses ect.. ect

                  Comment

                    #10
                    my car is doing the same thing just much worse. it does not loose any fluid out of the resevoir but i have to put the car in neutral to get it to sit still at idle
                    http://secondhandracing.com/Home.aspx
                    http://secondhandradio.com/

                    R.I.P. Jason P Harrill 6-12-06

                    http://www.grandmarq.net/vb/showthread.php?t=5634

                    Comment

                      #11
                      Originally posted by DuceAnAHalf View Post
                      my car is doing the same thing just much worse. it does not loose any fluid out of the resevoir but i have to put the car in neutral to get it to sit still at idle
                      Master cylinder again, only internal leak - had that same issue in the townie, not as bad as you but it was noticeable, replaced the m/c and life is good. Also with the 4x4 the F350 m/c I installed a week ago was bad like that too, it would not build up pressure unless I spike on the brakes, the Chevy m/c I was using before that as well as the new F250 m/c don't have that issue.

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                        #12
                        Well I just had the calipers on my truck replaced (under warranty) and it stops fine now. The bleeders on the old ones has siezed up for some reason, so the shop replaced them and it stops fine. So i'd suggest trying to bleed the brakes, that might solve the problem.
                        88 Town Car (wrecked, for sale)
                        Walker OEM duals with muffler deletes

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                          #13
                          Bleeding is truly a great thing - you have no idea how shitty pedal feel my diesel has now, all cause the previous owner never bled the RABS - once I'm near the floor the damn thing almost throws me through the windshield (which is how it should be), but till then tis reeeal soft and spongy... will be taken care of tomorrow evening of course.

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                            #14
                            RABS...I'm assuming the "ABS" part is Anti-Lock Brakes, but what does the "R" stand for? :confused:

                            2001 Ford Crown Victoria P71 - "The Fire Engine"
                            1985 Lincoln Town Car Signature Series
                            But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8

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                              #15
                              Rear ABS, pretty rudimentary, but apparently gets the job done. Just bled the thing, not much of an improvement. Tried cracking the rear bleeders open, didn't happen, so I bet I got some air in there too. Will pull drums soon and replace wheel cylinders, but for now tis good, I just gotta press the pedal more.

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