91 accord transmission problems

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  #1  
Old 12-12-09, 06:31 AM
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91 accord transmission problems

Having automatic tranny problems and wondering if I am missing something that I can do. The car stopped moving while I was engaged in drive at around 40 mph, moments later tranny re-engaged. hours later same thing occured but this time it would engage and disengage in movement for hours and would have to wait for 1/2 hour or so before I could move for 5 or so miles before it would car would stop moving. I was able to get more out of it if I went drive 1 . Now I get a minute or so of foward movement if that but reverse appears to work regularly although Im not driving around the block like that so I dont know. The fluid was not burned as I can see. The drive selector and axles appear fine. could it be an electronic issue? I dont know. I do not want to tow vehicle to shop's for them to tell me to rebuild tranny which would not be worth the expense.
 
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  #2  
Old 12-12-09, 06:26 PM
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How many miles are on it, jono?
 
  #3  
Old 12-12-09, 11:30 PM
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Check the fluid level when it's idling in park on a level surface,,, It almost sounds as if the level is low..Thats my first guess,, but it may be money well spent to have a pro look at it.... Roger
 
  #4  
Old 12-13-09, 08:27 PM
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it has 104,000 original miles
 
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Old 12-13-09, 08:31 PM
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thanks Roger, I have done that, fluid is right on.
 
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Old 12-14-09, 04:40 AM
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Not a lot of miles, but I have to agree with hopkins; probably time to have a good tranny shop have a look. Ask around for people who can give you a reference to one.

FWIW, failing trannies often retain reverse even though forward gears are gone.
 
  #7  
Old 12-15-09, 02:40 AM
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Thumbs up loosing all movement

You know, I have had many Honda/Accura transaxles come in for repair with a no movement condition, but when the vehicle sits for a short period well by golly It moves! Oh yeah but it progressivly it gets worse... Well unfortunetly you have to remove the unit! well the problem lies inside , the trans filter has a real fine screen that tends to plug up and then when the vehicle is turned off the ATF back flushes and clears the filter. You know there are lots of techs who short cut a unit and dont change the filter but I feel Honda has a poooor design on the filter. Good luck and let me know! TRANSKNG.
 
  #8  
Old 12-18-09, 10:50 AM
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Clogged filter!

My goodness makes me furious to think that it may be a filter! guess at that point , labor considerations and all, that I would remove tranny and rebuilt it. No? THANKS Tranykng
 
  #9  
Old 12-29-09, 12:59 PM
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jono1234 I have a 92 accord that did the same thing yesterday. Have you found out anything?
 
  #10  
Old 12-29-09, 01:46 PM
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i had some problems similar but quite the same with a 90. here is the text of a post i bookmarked from here:
http://www.honda-tech.com/showthread.php?t=962851


Re: 94 accord auto tranny slipping (FifthGearOnline)
As many of you are aware, early 90's Accords regularly have transmission shifting problems (eg. S light flashing or on steady, D4 light flashing, trans takes off in 2nd gear). The most common cause of this is a burnt out TCM.

Below is some info on how to check for codes, TCM location, and most IMPORTANTLY, how to check your TCM.


Behind the right hand corner of the dash on the passenger's side (just below the glove compartment) you will find 2 connectors taped to the wire harness with blue tape ( unless someone previously removed the tape). One is a three wire connector (data link connector) the other is a two wire connector. By jumping the two wires on this connector, you check for engine and transmission codes.
With the ignition switch off, connect the two wires together. Have a pen and paper handy. Turn the ignition switch on. The S light (or D4 light if your car doesn't have the S light) should start to flash a code. Might be a combination of long and short flashes. A long flash stands for 10, and short flashes are 1. For example, if the light blinks: long-short-short-short, then that is a code 13. When you find out what code it is, post it and I can tell you what is going on. BTW, 90-93 Accords have a bad habit of burning out the trans computers. So sometimes you won't get a code. The light will just stay on steady when you jump the connector.
If the light doesn't blink when you jump the connector, then your TCM (transmission control module) might be bad.
To verify this, remove the TCM ( it's located under the rug on the passenger side bolted to the firewall). You will find two modules bolted to one bracket. The TCM is the smaller of the two, on the right.
To remove it, you'll need to remove the 4 bolts securing the bracket. Then, unplug both computer modules, and gently remove the bracket.
Next, unbolt the TCM from the bracket.
Remove the four screws that hold on the cover.
Look at the board carefully. If it is bad, you will find a burnt out resistor and a leaking capacitor. Again, LOOK CAREFULLY. Yours might not be this bad. Sometimes just one of the resistors will overheat and turn dark brown.

This is the TCM



With the connector pointing down, the bad spot will be in the lower right corner



This is what the damaged part looks like up close



looks like the pictures are not there anymore. but start with the tceu which is a gold box at the passenger's feet. pull back the mat and check the flashing light code. start with that info to help find the problem. note: some of these had flashing lights on the tecu itself so you did not have to splice wires, just turn on the ignition to on and record the flashes. this ecu for the trans is the one closest to the passenger door. the other one, near the middle of the car is for the engine.
 

Last edited by the_tow_guy; 01-13-10 at 05:36 AM. Reason: Removed email addresses and solicitation to sell products.
  #11  
Old 12-31-09, 04:15 PM
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I checked both the shift and lockup solenoids on the tm both 13.6 ohm (specs 12-24 ohm) all clicked when voltage was applied. Removed tcm and found no burnt resistors or leaking caps. Reinstalled and reconnected battery. Car tm works ok for a few then will not move forward. If I shut it off and restart it will work again for a few more minutes. I also noticed what sounds like a vacuum leak or hydralic valve not sealing. It seems to stop when I put it in gear. I might try checking pressure next unless I get a better suggestion.
 
  #12  
Old 01-13-10, 04:14 AM
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I still dont have this figured out yet and beginning to get frustrated. I did swap my 92 tcm into my 90 accord (they are supposed to be different tcm's) and it drove and shifted fine except that the shift light stayed on. 92 does not have the shift switch/light so may or may not be significant but shifting was perfect. Took off solenoids and cleaned, seemed to work ok reinstalled. Pressure port was not of a thread type that I had on hand so I did not check any pressures.
 
  #13  
Old 01-19-10, 03:35 PM
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90 accord trans failure

John, just read your last post about swapping the tcm. Is the car still going?
 
  #14  
Old 01-28-10, 03:42 AM
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sorry jono, I have not been on here for a week or so. I stopped in at local dealer shop and they thought that something is plugging the screen inside and said that I need another transmission. They said that there are a lot of parts needed to replace when disassembling to get to screen and that there must be a failing part inside such as clutches. I have been trying to decide if I should use it for parts for my 90 or fix it. I hate to put that kind of money in a 200,000 mile 92 car although my 90 has 305,000.
 
  #15  
Old 01-28-10, 04:19 AM
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Jono-to answer your question the trans failed in my 92. I took the tcm out of it and put in 90 accord and it shifted ok so I swapped back assuming that was not the prob.
 
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