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91 Accord SE lock-up (overdrive) on transmission not working

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    #1

    91 Accord SE lock-up (overdrive) on transmission not working

    I've pretty much reached the conclusion that I am going to have to replace the transmission to solve this, but I thought someone might have had a similar issue at some point. Here are the specifics.

    Car seems to shift fine through the 4 gears, but on the highway in will engage the lock-up (overdrive) only for a few seconds and only when under a load (if I give it some gas). Once the car speeds up to the point where the load isn't as heavy (not as much torque?) it kicks back out and revs back up. I'm currently cruising at about 4000 RPM at 80MPH. With the ridiculousness of the gas prices, I need all the ecomony I can get (90 mile daily commute).

    Car is a 1991 SE, now has 140,000 miles on it (was at 110k when I bought it 18 months ago). Problem has always been present. When I first bought the car, I had to replace the VSS because it failed. I hoped that would cure the transmission, but it didn't. I also threw a new lock-up selenoid on there, without any luck. Could be the TCU, but I didn't see anything burnt in there. Is there a way to road test it?

    sorry the the length. Thanks for the help.

    Fred.
    1991 Honda Accord SE (current)
    1993 Honda 10th Anniversary (victim of hit and run ... still in driveway)
    1990 Honda Accord LX (died at HRA-O at 230,000)
    Tags: None
    #2
    My car does the same thing. Quick way to save gas.

    DONT CRUSE AT 80 MPH!!

    Do the speed limit and the car will stay around 3 grand. If you have sports turn it off.
    No longer working on the cb. To much time and money has been put into it. Check my for sale thread where the whole car will be parted out.

    Comment

      #3
      thanks for the advice. I'm trying to get up earlier so I can slow down, but the average commute speed is probably 70-75 and I hate being that one slow car. Anyway, if there was a quick fix I'd try it, but it's liveable for now. The only other thing I have seen about this was changing a thermostat, which I don't fully understand, but I'm willing to try.

      thanks,

      Fred.
      1991 Honda Accord SE (current)
      1993 Honda 10th Anniversary (victim of hit and run ... still in driveway)
      1990 Honda Accord LX (died at HRA-O at 230,000)

      Comment

        #4
        Couldnt hurt.

        Also check the pcv grommet. If its dried up replace it. Hope this helps.
        No longer working on the cb. To much time and money has been put into it. Check my for sale thread where the whole car will be parted out.

        Comment

          #5
          i had that problem in my car. I took it to this shop and the guy was saying something about the clutch packets and the tcu chip. he was saying something like the tcu was fried or something. I was staring at this hot girl's ass. so anyways good luck.
          my 91 cb7
          Originally posted by 4doorfury
          I swear, if I hit a raccoon I'll just keep pushing him, there's no way he's going to fit underneath the car

          Comment

            #6
            sounds like it needs replaced.
            some cars have wings cuz they look cool.
            some cars have wings cuz they increase efficiency.
            some cars have wings to keep them from taking flight.
            f1 fan

            Comment

              #7
              thanks for the suggestions. I'll try the cheaper things and then just live with it until it gets worse, if it ever does. Or better yet, replace the car with another 90-93.
              1991 Honda Accord SE (current)
              1993 Honda 10th Anniversary (victim of hit and run ... still in driveway)
              1990 Honda Accord LX (died at HRA-O at 230,000)

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