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84 lincoln aod not shifting into second gear. HELP! will not go into second gear.

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    84 lincoln aod not shifting into second gear. HELP! will not go into second gear.

    It's been sitting for a few weeks now, I've posted on a different forum and I'm in need of help, or I need to sell it...or scrap it.
    I believe it's possibly a stuck 1-2 valve in the valve body..because it won't shift into second gear... I've changed the fluid,filter,and gaskets, the fluid didn't smell burned, but it wasn't a bright red, it was shiny and somewhat dark, but it didn't have any metal shavings or any kind of dirt or debris in the pan,it was all nice and clean. I put the filter on along with the gaskets,and the new fluid, and it was a no go it still wouldn't shift into second. The throttle valve linkage (rod) is hooked up with the correct (rip off) bushing with clip, it wasn't before. It had always shifted before,even without the bushing,the rod would fall off out of frustration (when I had a bad fuel pump,it would stall and I'd mash the gas pedal over and over) and it wouldn't shift, it would keep going up and up in rpm's, connect it back on the linkage,and it would shift right into second.

    It's a 1984 Lincoln Towncar signature,tbi with aod,cruise cable,throttle cable,and tv linkage(rod).
    Thursday or Friday whichever day I have time, me and my neighbor are going to pull the transmission, look at the valve body,and up above it. One question though, are there shift solenoids? I'm not good with transmissions since I've never worked on one, this is my first vehicle and my learning vehicle. I've done lots of work to it,and I don't want this to be the cause to sell it or scrap it. I've heard also about some spring up by the side of the transmission above the valve body has a tendency of falling off it's holding grove?

    Anyways, I think it's either the 1-2 valve or (1-2 solenoid if it has one idk) neighbor told me a solenoid has to be electrical, but I saw a video of someone taking one apart from a 1980'/4/5 crown vic, and it had 3 solenoids in it. One for 1-2,another for reverse and neutral I think, I'm not sure on that. And the last one for overdrive. Considering since Lincoln is part of Ford, that mine also has those three. Correct?

    Please respond and tell me if I'm correct on my thoughts of what this could be please. I need my vehicle to get to work lol.

    #2
    Servos yes. Solenoids no. Nothing electronic on this transmission.

    Running it without the tv bushing is bad news...

    There is a return spring for the tv rod up by the throttle body... you could make sure you have that. Make sure the spring is there and the tv rod quickly and completely returns to the throttle plate.

    Comment


      #3
      Originally posted by ford man View Post
      Servos yes. Solenoids no. Nothing electronic on this transmission.

      Running it without the tv bushing is bad news...

      There is a return spring for the tv rod up by the throttle body... you could make sure you have that. Make sure the spring is there and the tv rod quickly and completely returns to the throttle plate.
      +1 If all else checks out you may wish to run some trany cleaner (maybe Seafoam - not sure you can use in trany) along with fluid/filter change. I'd do that before scrapping the car!


      "Hope and dignity are two things NO ONE can take away from you - you have to relinquish them on your own" Miamibob

      "NEVER trade your passion for glory"!! Sal "the Bard" (Dear Old Dad!)

      "Cars are for driving - PERIOD! I DON'T TEXT, TWEET OR TWERK!!!!"

      Comment


        #4
        Is the TV rod hooked up properly? When these fall off, it maxes out the pressure and you either will not see a 1-2 upshift, or it shifts very very late and probably won't shift beyond second gear.
        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


          #5
          I know when the tv cable is disconnected, it minimizes the pressure, and you shift really early (and too weakly)...
          was the '84 system different than the '89 and '90 I've worked on?

          You can get a bench-rebuilt aod for $600. Food for thought. R&R is about 6 hours.

          I've heard "solenoid" bandied about with mechanical automatic transmissions also... guess it's just semantics.

          There's a governor in the tailshaft that regulates upshifts. If that's stuck...
          Last edited by BerniniCaCO3; 04-10-2012, 10:25 PM.

          Comment


            #6
            yes, the CFI cars use a rod instead of the cable. I dont quite know why, but when it falls off, it tends to go to max pressure instead of minimum pressure like the cable does. This is a good thing though. Makes the trans act really stupid but it causes no harm.
            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


              #7
              That is better!

              I now have a (cfi) car that has a vacuum modulator, and when it falls off, it just shifts very hard in every gear.
              Also, much better, than shifting really soft.

              Comment


                #8
                For the OP, I presume the linkage is, now, set up correctly?
                If it is set up backwards from the later-model cable, then I guess disconnected = WOT = downshifted, which might explain why it wouldn't get to second gear when it was off.
                But you're saying it's on properly now, and it's behaving this way?

                Comment


                  #9
                  Car is a 302 5.0 liter tbi, not cfi. It has 2 cables,one for cruise control,the other for throttle,the rod is the Throttle valve linkage,I haven't had the bushing for it on there until recently. But it never came off before, it just stayed on but not connected if that makes sense. Usually it would do this but it would shift into second after going to 45mph, then it would shift,and it would be fine for about 2-3 weeks,then it would do it all over again. Now that's not the case,I've tried and tried,yes I've replaced the fluid,and changed the filter and gasket in the tranny. I think it could be a stuck 1-2 valve or solenoid, is that possible? Also..a while back it started to slip just a little (neutral out). I would start it up, put it into reverse,and it would take a few seconds,then put it into first,and it would only go into gear after raising the rpm's a bit maybe about 2000, not sure since there isn't a gauge. But it would do that all the time. Tomorrow my neighbor is going to let me know what his friend thinks of it, he said he's worked with transmissions for over 25+ years. I hope it's nothing that serious,either way the tranny has to come down since I have to replace the front seal since it leaks.

                  Comment


                    #10
                    Originally posted by ford man View Post
                    Servos yes. Solenoids no. Nothing electronic on this transmission.

                    Running it without the tv bushing is bad news...

                    There is a return spring for the tv rod up by the throttle body... you could make sure you have that. Make sure the spring is there and the tv rod quickly and completely returns to the throttle plate.
                    Everything seems good, The whole time I've owned the car (about maybe 2 years) It hasn't had the bushing,and it would shift fine,as long as it was connected. As soon as it would fall off, it wouldn't shift into second until it goes about 45 mph.
                    I have recently bought (one) bushing with clip...rip off.. 13$. And it is on there now,but it didn't fix the problem. Nor did changing the filter and fluid. Here's a picture of the cables/rod assembly.

                    Click image for larger version

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                    Comment


                      #11
                      Originally posted by miamibob View Post
                      +1 If all else checks out you may wish to run some trany cleaner (maybe Seafoam - not sure you can use in trany) along with fluid/filter change. I'd do that before scrapping the car!
                      Running seafoam does nothing for my car, it doesn't get to optimum operating temperature for it to work properly I've tried using it before, it just smoked a little. The intake needs replaced, along with the thermostat/housing. It was stuck closed,so I tried to remove the housing and the bolt was seized and stripped,so I drilled it out and its best to leave it alone how it is. So seafoam is out of the question for me for now. I have put brand new fluid in it though, but I kind of think it could be a stuck 1-2 valve...I'm not too sure.. but since they are somewhat basic transmissions compared to the aod-e and more on, they seem easier to find solutions to problems.

                      Comment


                        #12
                        Originally posted by BerniniCaCO3 View Post
                        I know when the tv cable is disconnected, it minimizes the pressure, and you shift really early (and too weakly)...
                        was the '84 system different than the '89 and '90 I've worked on?

                        You can get a bench-rebuilt aod for $600. Food for thought. R&R is about 6 hours.

                        I've heard "solenoid" bandied about with mechanical automatic transmissions also... guess it's just semantics.

                        There's a governor in the tailshaft that regulates upshifts. If that's stuck...
                        I believe in 85-6 they went to aod-e and it went to solenoids,and electrical along with cfi instead of the tbi not to sure. Mine is an 84 aod,it's all mechanical. It won't shift into second gear (usually) until 45 mph if the rod was off,with it on it would shift into second at about maybe 25-30 mph. And yes I was thinking on the stuck Governor too,I heard taking a hammer and taping the tail shaft where it is located could possibly free it up..I haven't yet tried that though.

                        Comment


                          #13
                          Seafoam does make a trany liquid. Can't use that or the one for the intake/fuel tank?


                          "Hope and dignity are two things NO ONE can take away from you - you have to relinquish them on your own" Miamibob

                          "NEVER trade your passion for glory"!! Sal "the Bard" (Dear Old Dad!)

                          "Cars are for driving - PERIOD! I DON'T TEXT, TWEET OR TWERK!!!!"

                          Comment


                            #14
                            AOD till around 92/93 then AOD-E I believe in 93.


                            "Hope and dignity are two things NO ONE can take away from you - you have to relinquish them on your own" Miamibob

                            "NEVER trade your passion for glory"!! Sal "the Bard" (Dear Old Dad!)

                            "Cars are for driving - PERIOD! I DON'T TEXT, TWEET OR TWERK!!!!"

                            Comment


                              #15
                              Originally posted by BerniniCaCO3 View Post
                              That is better!

                              I now have a (cfi) car that has a vacuum modulator, and when it falls off, it just shifts very hard in every gear.
                              Also, much better, than shifting really soft.
                              No vacuum modulator unless you have a very early model with a C4. No AOD has one of those.

                              Originally posted by 84towncar View Post
                              Car is a 302 5.0 liter tbi, not cfi.
                              TBI is GM's name for it. Ford called it CFI, or Central Fuel Injection. Effectively the same design, electronic carb-like apparatus with a fuel infector in the middle of it.
                              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

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