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1990 eclipse automatic stuck in high?

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  • #435071
    hondaslave1342hondaslave1342
    Participant

      hey everyone, i have a 1990 eclipse AWD turbo automatic that is stuck in high gear..this happened in 2006 and the car has sat since then. one morning i was backing out the driveway and when i put it into drive it was stuck in 4th..reverse works, and if i put into like 1,2,3 its still stuck in fourth…i dont remember off hand if its a 4 speed but i do know its in high…..let me know

    Viewing 15 replies - 1 through 15 (of 17 total)
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    • #435073
      hondaslave1342hondaslave1342
      Participant

        Quoted From Trcustoms719:

        How do you know it’s in high gear?
        Try unhooking the battery for a few minutes to reset everything, then see if the problems still there.
        How is the transmission fluid level and condition?

        i know its high because the car hardly moves forward,,,,when this happened i put the accelerator to the floor and got up to highway speed, never shifted…the fluid was changed around 1 year before…im thinking hard parts have failed,,,but im hoping maybe something simply,,,,,,

        #435074
        Trcustoms719Trcustoms719
        Participant

          Quoted From hondaslave1342:

          i know its high because the car hardly moves forward,,,,when this happened i put the accelerator to the floor and got up to highway speed, never shifted…the fluid was changed around 1 year before…im thinking hard parts have failed,,,but im hoping maybe something simply,,,,,,

          Maybe the the solenoid for that gear is stuck on.
          Can you shift the car manual starting out in the low gear?

          #435075
          hondaslave1342hondaslave1342
          Participant

            Quoted From Trcustoms719:

            nope,,,not at all….all forward gears on the gear selector are high gear

            #435072
            Trcustoms719Trcustoms719
            Participant

              How do you know it’s in high gear?
              Try unhooking the battery for a few minutes to reset everything, then see if the problems still there.
              How is the transmission fluid level and condition?

              #435076
              dreamer2355dreamer2355
              Participant

                So if im understanding you correctly, the vehicle red lines and doesn’t shift, such as excessive slipping of the trans?

                Do you have a check engline light? Is the auto trans controlled by shift solenoids, TV cable or a vacuum modulator?

                #435077
                hondaslave1342hondaslave1342
                Participant

                  Quoted From dreamer2355:

                  So if im understanding you correctly, the vehicle red lines and doesn’t shift, such as excessive slipping of the trans?

                  Do you have a check engline light? Is the auto trans controlled by shift solenoids, TV cable or a vacuum modulator?

                  no slippage,,it will get up to speed but in high gear…..no check engine light..as far as what controls it=?…i have a hanyes manual and it states it has some kind of box located in front of the gear selector inside the car…

                  #435078
                  dreamer2355dreamer2355
                  Participant

                    With KOEO and the brake pedal depressed, can you select the gears ok and does it ‘feel’ like its going into gear if that makes sense?

                    #435079
                    SpawnedXSpawnedX
                    Participant

                      It’s going to have a TCU that is either bad or the transmission is in limp mode. Check to make sure the fuse isn’t blown first. Also this car controls shift by a solenoid.

                      #435080
                      hondaslave1342hondaslave1342
                      Participant

                        Quoted From dreamer2355:

                        With KOEO and the brake pedal depressed, can you select the gears ok and does it ‘feel’ like its going into gear if that makes sense?

                        like i said, i can fire up the engine, put into reverse, back out the driveway, or even smoke the tires in reverse, but when i put the selector into ANY forward gear=it is in high gear…i will move but feels like im dragging the titanic’s anchor…i looked in the manual and it does have a electric nuetral safety switch and shift solenoid…..im wondering what the fuse description would be for the solenoid

                        #435081
                        hondaslave1342hondaslave1342
                        Participant

                          Quoted From SpawnedX:

                          It’s going to have a TCU that is either bad or the transmission is in limp mode. Check to make sure the fuse isn’t blown first. Also this car controls shift by a solenoid.

                          what fuse and its name….this is what im thinking…something simple…….thanks…also if in limp mode…how do i reset? i have no CEL on, and its a obd 1 system

                          #435082
                          EricTheCarGuy 1EricTheCarGuy
                          Keymaster

                            Actually limp in will put you in second gear if I’m not mistaken. It sounds like the transmission is not getting the correct speed signal, being that it’s a 90 the transmission may only be partially electronic and it still may use a ‘governor’ to control part of the shifting instead of an electronic speed sensor. If this is stuck or not getting the correct signal it may cause the transmission to be stuck in a particular gear. The other posibility is that you have a shift valve stuck in the throttlebody somewhere. Also look for any vacuum lines that go to the trans or things on the trans and make sure they are connected and not leaking as one may go to a ‘modulator’ which senses engine load and sends a hydraulic signal to the shift valves that coorilates with engine load.

                            Those are the ‘simple’ things I can think of.

                            #435083
                            SpawnedXSpawnedX
                            Participant

                              If it is in limp without a code it generally indicates the actual mechanics of the transmission are the issue. I don’t have a 1g fuse panel diagram…search dsmtuners.com for one. Most people with this issue with these cars are getting it because of a bad TCU.

                              #435084
                              hondaslave1342hondaslave1342
                              Participant

                                Quoted From SpawnedX:

                                If it is in limp without a code it generally indicates the actual mechanics of the transmission are the issue. I don’t have a 1g fuse panel diagram…search dsmtuners.com for one. Most people with this issue with these cars are getting it because of a bad TCU.

                                just finished my search and tommarow will put into action….dsmtuners is a great forum and learned these trans have faulty TCU’s….thanks for the tip…either that or a solenoid wire broke loose…

                                #435085
                                hondaslave1342hondaslave1342
                                Participant

                                  ok here’s is where im at…since this is a 1990 i used a analog miltimeter hooked to pin 6 and 12..i receive no singal….when i hook it to 1 and 12 for ecm codes i get a continous beep…since 6 and 12 is for checking the TCU, my question is if its bad, would it be non-responsive=no pulse?

                                  #435086
                                  hondaslave1342hondaslave1342
                                  Participant

                                    ok here’s is where im at…since this is a 1990 i used a analog miltimeter hooked to pin 6 and 12..i receive no singal….when i hook it to 1 and 12 for ecm codes i get a continous beep…since 6 and 12 is for checking the TCU, my question is if its bad, would it be non-responsive=no pulse?

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