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    #1

    Lazy brake lights

    Hi everyone,

    It's me again! (Ford LTD Crown Vic Lx 5.0 CID).
    I'm having a little trouble with my brake lights. In fact, they operate inconstantly, depending on the pressure applied to the brake pedal. Today they barely worked at all, lighting only with maximum pressure on the brake. On other days, they work as soon as I touch the pedal.
    Any idea where that can come from? It is the master cylinder, or maybe just the cold weather ? What does make those lights work?
    Thanks for Your help!
    Tags: None
    #2
    There's a switch up at the top of the brake pedal lever... the exact name for it escapes me at the moment, but brake light switch sounds pretty good. If you lay down underneath the pedals and look up under the dash I bet you'll see it. That's bound to be your problem. Never changed one so I don't know how much of a pain in the ass it is, but I don't remember it looking like a lot of fun in my Townie. I may be exaggerating though because I haven't been underneath my dash in a few months now.

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      #3
      brake on/off switch, or BOO.

      Not that bad to change, if memory serves there is a pin holding one end of it to the brake pedal, and the other end clips in somehow. Shouldn't be too hard to figure out once you get positioned to see the thing.
      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

      Comment

        #4
        I had a helluva time just pulling the connector off mine to tap the wire for the 3rd brake light in the 85. I remember at that time not looking forward to ever haveing to replace the switch.
        Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
        'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
        sigpic
        85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

        Comment

          #5
          Your right, it's one of those "I can see it, but, I can't get there from here" things.
          89 CV LX 225/60 x 16 tires, CC819 rear springs, Front & rear sway bar, trans & PS cooler from 90 cop car. KYB shocks, F-150 on rear. Dual Exhaust w/ H pipe. Dark brown door panels, carpet, steering wheel, trim parts from a 87 Mer GM. Power front buckets from 96 Jeep Cherokee. LED'S front & rear. 3G Alt from a 97 Taurus wagon 3.0. Electric fan. Rear axle from a 97 PI 3.27 with disk brakes. Headlight relays.

          Comment

            #6
            yeah... big hands dont help!
            Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
            'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
            sigpic
            85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

            Comment

              #7
              Originally posted by 85crownHPP* View Post
              I had a helluva time just pulling the connector off mine to tap the wire for the 3rd brake light in the 85. I remember at that time not looking forward to ever haveing to replace the switch.
              I hated replacing that brake light switch pain in the ass. the hardest thing was getting the connector off. My neck hurt for a while lol. I got mine at the ford dealer 47 new If I remember. reason I wanted the ford switch was because I didn't want the cheaper one to fail than I would have to go through that all again lol.

              1989 mercury grand marquis gs / 2014 ford focus s daily driver
              302 lopo with ho upper/ aod with trans go shift kit
              k code 3:55 posi rear/big brake swap tow package car

              Comment

                #8
                it's about $10 or so at napa. took me about 20 minutes to change mine but i had to take a couple muscle relaxers when i was done.
                '88 Colony Park, white with wood grain contact paper, K code axle, hose pliers on heater hoses, factory duals, big plans in the future...

                '83 Toyota 4x4, 31x10.50 15, could use a new carb, custom humidifying holes in the roof, mud based paint...

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