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Did I mention that my car is angry at me? Vacuum leak from gear selector....

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    Did I mention that my car is angry at me? Vacuum leak from gear selector....

    It MUST have overheard me talking about getting a different car.... MUST have.

    First, the driver's side caliper partially seizes, but it waits until I'm en-route home from the auto parts store to do so - and of course gives me no time to go back before the store closes for the night.

    Then, mere hours after I take care of the caliper (also new rotor, bearings, seal, brake pads), the TFI module conks out.

    Ok, get that taken care of today.... now there's hissing behind the dashboard. Vacuum leak, but the pitch of the hissing sound changes depending on which gear I'm in (Park, Reverese, Drive, Overdrive, etc - and not there when in Neutral).

    So, yeah, vacuum lines behind the dash, as related to the gear selector.... anyone got a diagram for this? I imagine it's related to the unit that holds vacuum to release the parking brake when the car's put in drive.

    Thanks in advance.... and if my car asks, no I did NOT mention anything about possibly buying a Buick Regal (or as my Crown Vic describes it, "That prissy whore...")
    1987 Ford LTD Crown Victoria 2-door Coupe - perpetually "sort of" for sale...
    Black with Red cloth (velour?) interior.
    Purchased on 10/10/2008, with only 70,386 original miles, and only ONE previous owner.
    Reader's Ride post, First pic with "new" rims, Other pics with "new" rims

    #2
    your pitchy vacuum leak is probably the horseshoe shaped valve at the end of the shifter around the steering column near the firewall. just unplug the line from the firewall and plug the line. It's only used to actuate the parking brake release.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

    Originally posted by gadget73
    ... and it should all work like magic and unicorns and stuff.

    Originally posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

    Comment


      #3
      Cool, I'll probably do that for the short term solution (that hissing IS annoying as hell), though I'll eventually want to track the problem down and fix it.

      Yeah, it'd make me happy for the parking brake thing to work - I tease my GF about how my 1987 Ford is smart enough not to let people accidentally drive with the parking brake on, unlike her 2000 Mercedes. She's never done it more than a few feet on her own car, but still.....
      1987 Ford LTD Crown Victoria 2-door Coupe - perpetually "sort of" for sale...
      Black with Red cloth (velour?) interior.
      Purchased on 10/10/2008, with only 70,386 original miles, and only ONE previous owner.
      Reader's Ride post, First pic with "new" rims, Other pics with "new" rims

      Comment


        #4
        The problem is the valve itself goes bad. New ones aren't made anymore, and the old ones are all dead. Not much to be done for it honestly.
        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


          #5
          Seriously - if you might like my 91, think of what cash amount you would like on top of it. I would totally drive to Jersey for a trade + cash, assuming it is as delightfully rust free as it seems

          The link in my sig goes to a not-so-informative cardomain page, but i think I have a RR's thread here for it to. The engine was rebuilt once in it's life, and the transmission is freshy fresh.
          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


            #6
            Originally posted by sly View Post
            your pitchy vacuum leak is probably the horseshoe shaped valve at the end of the shifter around the steering column near the firewall. just unplug the line from the firewall and plug the line. It's only used to actuate the parking brake release.
            Uh, possibly dumb question, but is this against the firewall inside the car? Or against the firewall outside(under the hood)?
            1987 Ford LTD Crown Victoria 2-door Coupe - perpetually "sort of" for sale...
            Black with Red cloth (velour?) interior.
            Purchased on 10/10/2008, with only 70,386 original miles, and only ONE previous owner.
            Reader's Ride post, First pic with "new" rims, Other pics with "new" rims

            Comment


              #7
              inside the car.
              ~David~

              My 1987 Crown Victoria Coupe: The Brown Blob
              My 2004 Mercedes Benz E320:The Benz

              Originally posted by ootdega
              My life is a long series of "nevermind" and "I guess not."

              Originally posted by DerekTheGreat
              But, that's just coming from me, this site's biggest pessimist. Best of luck

              Originally posted by gadget73
              my car starts and it has AC. Yours doesn't start and it has no AC. Seems obvious to me.




              Comment


                #8
                +1 inside. the screws are hex drive 7/32 or 9/32 (can't remember which off the top of my head). The stuff still works in my Mark and Vic, but the 88... I got the last actuator in dealer stock in Texas 3 years ago and it died within 3 months. The horseshoe valve is still available at parts places. Part number F420 at Autozone.

                Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                Originally posted by gadget73
                ... and it should all work like magic and unicorns and stuff.

                Originally posted by dmccaig
                Overhead, some poor bastards are flying in airplanes.

                Comment


                  #9
                  Originally posted by 85crownHPP View Post
                  Seriously - if you might like my 91, think of what cash amount you would like on top of it. I would totally drive to Jersey for a trade + cash, assuming it is as delightfully rust free as it seems

                  The link in my sig goes to a not-so-informative cardomain page, but i think I have a RR's thread here for it to. The engine was rebuilt once in it's life, and the transmission is freshy fresh.
                  Umm . . perhaps . . give me a little time to think - I just possibly might...

                  Though I'll admit at first I almost thought the HO conversion was on the 88, at which point I'd had suddenly more interest. But still, given that I've been looking at other things and still feeling guilty about using this car for commuting....

                  And, yep, it's just as rust free as it looks...

                  (and MAN it sucks trying to see pics on Cardomain on a phone!)
                  1987 Ford LTD Crown Victoria 2-door Coupe - perpetually "sort of" for sale...
                  Black with Red cloth (velour?) interior.
                  Purchased on 10/10/2008, with only 70,386 original miles, and only ONE previous owner.
                  Reader's Ride post, First pic with "new" rims, Other pics with "new" rims

                  Comment


                    #10
                    Originally posted by sly View Post
                    The horseshoe valve is still available at parts places. Part number F420 at Autozone.
                    So you're saying that a new horseshoe valve is all that's really needed to get the auto parking brake release working again? I thought those parts were super rare.

                    1989 Lincoln Town Car Signature Series | 249k miles, current project car
                    2018 BMW 430i xDrive M-Sport | 50k miles
                    2018 Toyota Tacoma TRD Sport | 97k miles

                    Comment


                      #11
                      if the parking brake release is not leaking, the leak will be the valve. Replace the valve and have a nice day. If the release is leaking... remove the vacuum line from the firewall and plug it since you won't find a replacement for that part.

                      Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                      rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                      Originally posted by gadget73
                      ... and it should all work like magic and unicorns and stuff.

                      Originally posted by dmccaig
                      Overhead, some poor bastards are flying in airplanes.

                      Comment


                        #12
                        I had no idea the valves were available anymore. I was always under the impression that was a dealer part and the stock was long gone.
                        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


                          #13
                          the valves are available... the actuators... no. And if you do find one... it won't last.

                          Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                          rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                          Originally posted by gadget73
                          ... and it should all work like magic and unicorns and stuff.

                          Originally posted by dmccaig
                          Overhead, some poor bastards are flying in airplanes.

                          Comment


                            #14
                            by actuator, you mean the vacuum can on the parking brake assembly that actually does the release work, right?
                            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


                              #15
                              That thing does the parking brake release only? Shit, I thought it was connected to the cruise control as well. I disconnected that valve on my car and thought it was the cause for my cruise to stop working. Musta been a coincidence. Shit.
                              Summer car-> 1988 Lincoln Town Car, triple blue, 335,xxx km. New HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
                              Winter vehicle-> 1995 Ford F-250 XLT SuperCab 4x4, 284,xxx+km. AKA "Brutus" 460/E4OD/4.10 axles and 12 MPG. Bought 2019/08/14

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

                              Comment

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