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    power door locks? one is operational but slow

    Hi!

    Will have time this Sunday to take open the panel and have a look, but basically:
    When I hit the master lock switch, all the door locks go ka-chunk, except one-- the right rear door. At first I thought it was completely broken, then I realized that if I hold down the switch, it locks itself, just at a several-seconds' snail's pace.

    It unlocks, however, just as fast as any of the others.

    I learned that door locks are (electro)magnetic locks, using solenoids to pull down?

    Do they use a spring to come up?

    Here's where I'm going with this: one possibility is that there's something rubbing against it in the door, so it's fighting more resistance. But if it's spring loaded, wouldn't it be slow to unlock too? Or perhaps not, anyway?

    The other possibility is that theres a problem with the solenoid itself, or in the wiring to it. I can certainly check for 12.5V.

    If some mechanical interference within the door panel would likely cause it to BOTH slowly unlock and to lock, then I might just buy a new lock solenoid before I get into it on the expectation that it will need to be replaced, so that I don't find myself driving to the parts store with an unlocked, torn-apart door

    Has this happened to your car, and what did you find out?


    thanks!!
    -Bernard

    #2
    The actual unit it sorta funny how it works. The rod (that connects to to latch mechanism) is actually threaded and the inside of the motor spirals up and down that thread rod pushing the rod up, or pulling it down. The location that it is in (tucked up right against the door skin) steers it pretty clear of any obstacles. I'd suspect that it is a tired motor.
    ~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


      #3
      Sounds like a dead actuator. It will work slow for a little while and eventually lock up. And if it's extreme, you won't even be able to lock it manually.
      1990 Country Squire - under restoration
      1988 Crown Vic LTD Wagon - daily beater

      GMN Box Panther History
      Box Panther Horsepower and Torque Ratings
      Box Panther Production Numbers

      Comment


        #4
        is there a reason that it would be slow to lock, but just as quick to unlock?

        Comment


          #5
          I have this exact same problem on the exact same door.
          Also, when I tried to remove a junkyard lock motor, I couldn't get the actuating rod to disengage from the locking mechanism. What am I doing wrong?
          Last edited by 91waggin; 11-18-2010, 09:48 PM.
          Originally posted by gadget73
          There is nothing more permanent than a temporary fix.
          91 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.
          93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
          Daily--07 Civic Coupe. Bone stock with 25k miles
          Wife--14 Subaru Outback. 6-speed.
          95 Subaru Legacy Wagon--red--STOLEN 1/6/13

          Comment


            #6
            i pushed down the pin manually on my rear drivers door and now its stuck. i have to pull the door panel as well..
            1988 MGM GS - Preferred Equipment Package 172A; InstaClear

            1980 Lincoln Continental Coupe
            1994 MGM GS Montigua
            2005 F150 Lariat Scab 4x4 3.73 LS
            2002 Mustang GT Coupe

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              #7
              Originally posted by 91waggin View Post
              Also, when I tried to remove a junkyard lock motor, I couldn't get the actuating rod to disengage from the locking mechanism. What am I doing wrong?
              The end has two 90 degree bends in it, you have to finagle it out just so or it wont co-operate.
              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

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                #8
                drill out the rivet holding the bracket... pull the motor and lift to perpendicular with the latch mechanism. It should slide right out if you keep pulling a little as you move it up.

                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
                  I think one can get by without drilling out the rivet in the bracket. The actuator, to the best of my knowledge, pops into the bracket. So if replacing with an equivalent there is no need for relocating brackets.
                  ~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


                    #10
                    Ok. So I'm just being a bonehead.
                    Any recommendations for replacement actuators? I have seen stories on here of people getting actuators and having them be junk really quickly. This seems to have happened while my dad was driving my car too; he had the tailgate one replaced twice and it quit within a few weeks both times.
                    Originally posted by gadget73
                    There is nothing more permanent than a temporary fix.
                    91 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.
                    93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
                    Daily--07 Civic Coupe. Bone stock with 25k miles
                    Wife--14 Subaru Outback. 6-speed.
                    95 Subaru Legacy Wagon--red--STOLEN 1/6/13

                    Comment


                      #11
                      I like OEM Ford. Unfortunately the correct type are increasingly difficult to find for sane prices. I'd like to try retrofitting later model lock motors, but I haven't gotten around to it. I think 87gtVic has a set of later model lock motors installed.
                      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

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                        #12
                        word. I have some pictures hiding around here someplace. I hope I didnt delete them.

                        EDIT: Found the thread...it is in the trash though so you guys cant see it so here are some pics





                        Last edited by 87gtVIC; 11-19-2010, 07:56 PM.
                        ~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


                          #13
                          What did you have to do to retrofit the new ones? Anything special?
                          Originally posted by gadget73
                          There is nothing more permanent than a temporary fix.
                          91 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.
                          93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
                          Daily--07 Civic Coupe. Bone stock with 25k miles
                          Wife--14 Subaru Outback. 6-speed.
                          95 Subaru Legacy Wagon--red--STOLEN 1/6/13

                          Comment


                            #14
                            May have changed out the rod...but I had to drill a new whole for the bracket. It was so long ago......
                            ~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


                              #15
                              The cheapo replacements dont last... I replaced my drivers door one and shortly after it died again. I just take em out and toss em. No more power locks.
                              Builder/Owner of Badass Panther Wagons

                              Busy maintaining a fleet of Fords

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