and gain access to Reviews and Discussion of the 2016 and 2017 Ford Explorer Tech Tips, How to Articles, Off-Road Modifications and Events, Street Truck Mods and Events, and much more! Since 1996 our community has covered every aspect of the Ford Explorer, Ford Ranger and all vehicles based on this platform.

Register Today It's free! This box will disappear once registered!

What does blinking O/D OFF light mean????

Discussion in 'Under the Hood' started by Rob Slade, October 12, 2000.

  • Searches ExplorerForum.com
    1. Rob Slade

      Rob Slade Active Member

      Joined:
      February 2, 2000
      Messages:
      540
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wake Forest, NC
      Year and Model:
      03 Tacoma DoubleCab
      I was traveling on the beach today and got a little stuck. It was no problem, I just put it into four wheel drive and drove out. When i got done and put it back into two wheel drive, the O/D OFF light on the dash started blinking and it hasn't stopped since. The overdrive button works fine because i tested it on the highway back home, but the light won't stop blinking. I even stopped and re-started the car over again to see if it would go off, it didn't. If someone has had this problem, please let me know what it is and how it can be fixed. Thanks.
       
    2. Support EF


      Join the Elite Explorers for $20 a year

      Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, add your own profile photo, upload photo attachments directly to your posts and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.



      to hide adverts.
    3. Ray Lobato

      Ray Lobato Moderator Moderator Emeritus

      Joined:
      February 8, 1999
      Messages:
      4,615
      Likes Received:
      1
      Trophy Points:
      0
      Year and Model:
      2006 Honda Accord
      Rob, the only time my OD light blinked off and on was when the torque converter went out on me, but then my OD didn't work either. Have you tried to reset the computer?
       
    4. slow-demon

      slow-demon Active Member

      Joined:
      September 28, 1999
      Messages:
      246
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Hawaii
      Year and Model:
      '91 xl sport
      what year is your explorer. Is it a '95. Do what Ray said, reset the computer by disconnecting the battery for a minute or so. The light should stop blinking. If that helps and your explorer is indeed a '95 let me know. Also is the tansmission shifting hard when the light is flashing.
       
    5. b

      b Member

      Joined:
      July 8, 1999
      Messages:
      69
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Portland, OR
      Year and Model:
      '95 XLT
      I had the same problem with the OD lights blinking and took it to two different transmission shops; neither pulled any codes and said that the fluid looked good.

      So I read on the board to reset the computer codes and it has never occured again!
       
    6. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      So what is the correct procedure

      Are you supposed to disconnect both battery terminals? Or just negative or positive? I need to know cuz mine did it tonight out of the blue. It could be my worrisome imagination, but the shifting seemed a little hard. I want to the store tonight, which involves a hilly area to travel, I turned off the OD and it just started flashing. Turning it off and on again didn't help. Hoping that I can just reset the computer...
       
    7. Rob Slade

      Rob Slade Active Member

      Joined:
      February 2, 2000
      Messages:
      540
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wake Forest, NC
      Year and Model:
      03 Tacoma DoubleCab
      Here's what happened with my O/D light.

      How's it going? This is what happened with my O/D light problem. I took it in and they reset the computer. The light went off and it didn't shift hard anymore. The explaination i got was the computer was starting to go bad and that it was sending the tranny bad signals about where and how it needed to shift. Like I said, after we reset the computer, it went away, but I went ahead and replaced the computer to make sure that it didn't come back. In other words, I didn't want it to be just a temporary fix. It should work for you though, and you may never see that light come on again. It's you call. I hope this helps you out a little. Good Luck.

      Rob
       
    8. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      Thanks...

      I drove it this morning (praying I wasn't hurting anything) to the car pool lot. The only thing I noticed was that when it down shifts (when coming to a stop) first gear clunks and gives you that feeling like it shifted down too soon. You know, like in a clutch when you downshift just a millisecond too soon and it revs down?? I don't know...I wonder if it hurts it to drive it like that for another day? I can't get my truck to the shop till tomorrow... and how the heck do you know whether you are actually in OD or not? It will it just not come out of OD when the light is blinking? Arrrggh! I was just praising my truck for never having problems too...serves me right. lol
       
    9. Rob Slade

      Rob Slade Active Member

      Joined:
      February 2, 2000
      Messages:
      540
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wake Forest, NC
      Year and Model:
      03 Tacoma DoubleCab
      That's what happened to me.

      Basically what you described was exactly word for word what mine did and sounded like. It was a really harsh shifting when you slowed down and it dropped back into first. My overdrive still worked, even after the light started blinking. I tested it on the highway by watching the rpm levels as i pushed the button-if the rpm's shot up at 60 mph, it was out of O/D. It worked, but it still shifted badly. Hope my experience has helped you some.

      Rob
       
    10. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      Thanks...that makes me feel better

      At least I know I have 1/2 a chance of a reset working. Thanks for the speedy replies!
       
    11. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      Just wanted to bump this up and say...

      THANKS! The reset worked, not only to fix my blinking light but it also fixed my clunk in first AND the slight miss my engine was having :) TOOO COOOL! Thanks all! (I just luv this site!)
       
    12. Rob Slade

      Rob Slade Active Member

      Joined:
      February 2, 2000
      Messages:
      540
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wake Forest, NC
      Year and Model:
      03 Tacoma DoubleCab
      That's Great!!!!!!

      I'm really glad that all of it worked out for you. Hope you don't have any problems in the future. Good Luck.

      Rob
       
    13. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      Well....

      I can't give you the technical description, but I can tell you that the D with the solid background or the @ around it is over-drive. It allows you to go at higher speeds and lower RPMs. I am SURE one of these very educated guys could explain it in technical terms! :)
       
    14. Rob Slade

      Rob Slade Active Member

      Joined:
      February 2, 2000
      Messages:
      540
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wake Forest, NC
      Year and Model:
      03 Tacoma DoubleCab
      What overdrive is.

      What overdrive basically is is your fifth gear in your transmission. When you hit around 50 mph or so, it shifts into a fifth gear that allows you to travel faster without as much rpm, thus saving you gas mileage. When you turn the overdrive off, you are telling your computer to not allow you to shift into fifth gear. This is usually used in towing boats and such over hilly terrain because it keeps the engine from shifting so much back and forth between fourth and fifth gear. Hope this helps some.

      Rob
       
    15. Robert

      Robert Well-Known Member

      Joined:
      October 26, 1999
      Messages:
      3,956
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Mesa, AZ
      Year and Model:
      '97 4x4 Sport
      Re: whhattt

      Any gear ratio that provides a lower ratio than 1:1. Prior to overdrive transmissions, the top gear ratio was 1:1 (1 to 1). In other words for every revolution of the engine, you driveshaft will make 1 revolution. First gear ratios are usually in the 3.7:1 range. For every 3.7 revolutions of your engine, your driveshaft will turn 1 time. Basically higher RPM, slower speed. An overdrive ratio is usuall around .75:1. For every .75 engine revolutions your driveshaft will turn one time. It means that a lower engine RPM will result in a higher speed. These ratios are independant of your axle ratio which can vary from a 3.08:1 to a 4.10;1 (when stock). Using a 4.10:1 as an example, it means that for every revolution of the driveshaft, your rear axle will turn 4.10 times. Everything gets multiplied together to come up with a final drive ratio.
       
    16. WILL

      WILL Active Member

      Joined:
      October 16, 2000
      Messages:
      148
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Alsip, IL
      Year and Model:
      97 XLT SOHC
      THAT BLINKING LIGHT

      THE OVERDRIVE LIGHT FLASHES TOO WHEN THE TRANS BECOMES OVERHEATED. ANY COMPUTER RELATED PROBLEMS CHECK ENGINE, LIGHTS BLINKING ECT. CAN IF THE SYSTEM APPEARS TO BE FUNCTIONING NORMALLY CAN BE RESET BY PULLING OFF THE POS (+) TERMINAL OFF FOR ONE(1) min. THE NEGATIVE IS ONLY GROUND REFERENCE AND HAS NO EFFECT ON THE PUTER. IN MOST CASES POS SHOULD BE THE FIRST OFF AND LAST ON ( IN MY ELECTRICAL EXPERIENCE )
       
    17. mbryda

      mbryda Active Member

      Joined:
      June 30, 2000
      Messages:
      127
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      usa,usa
      Year and Model:
      someone
      Robert,
      Regarding the rear gears - isn't it the other way around - a 4.10 rear means that for every revolution of your wheels, your driveshaft makes 4.10 revolutions?

      -Matt
      (confused)
       
    18. Robert

      Robert Well-Known Member

      Joined:
      October 26, 1999
      Messages:
      3,956
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Mesa, AZ
      Year and Model:
      '97 4x4 Sport
      Oops! I reversed them. Yes for every revolution of your wheels, your driveshaft makes 4.10 revolutions. With everything else being equal, the 4.10 axle would have a higher engine RPM for the same speed as an axle with a 3.73 ratio.
       
    19. mbryda

      mbryda Active Member

      Joined:
      June 30, 2000
      Messages:
      127
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      usa,usa
      Year and Model:
      someone
      Whew! That's what I had always been told and it'sglad to see I'm not loosing my mind (yet).

      -Matt
       
    20. jarnold

      jarnold New Member

      Joined:
      November 20, 2000
      Messages:
      2
      Likes Received:
      0
      Trophy Points:
      0
      OD light flashing

      My OD light started flashing too recently. It shifts hard also when the light is on. I disconnected the ground on the battery, and I cleaned fuse #27. The light still came back on flashing. I ran a diagnostic from a non-Ford shop and no codes came up. Ford says there is no recall on anything tranmission related, it's upsetting to think I might have torque converter problems at 44K miles when the warranty expired at 36K. I will be taking it in next week and will keep you posted.




       
    21. Frisckey1

      Frisckey1 Explorer Babe<br><img src="/forums/images/star3.gi

      Joined:
      May 12, 2000
      Messages:
      480
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Dale City, VA
      Year and Model:
      '95 Sport 4X4
      Did you disconnect BOTH terminals?

      That's what I did and it was fixed. I am not sure about it, but I think you should disconnect the positive or both? Good luck...hopefully you don't have the worse of the two scenarios!
       
    22. jarnold

      jarnold New Member

      Joined:
      November 20, 2000
      Messages:
      2
      Likes Received:
      0
      Trophy Points:
      0
      Flashing O/D light diagnosis

      I finally took my car to Ford because of the flashing O/D light and the periodic check engine light that would come on. My service advisor told me that because I changed my transmission fluid so late (42K) these problems occured. The codes they pulled of the computer in my car were that there was a slip about to happen. Bottom line, I need a whole new transmission. Do yourself a favor and don't delay in having this service done. It is supposed to be done at 30K something miles. This was a costly mistake.
       
    23. tac0meat

      tac0meat Elite Explorer<br><img src="/forums/images/stars4.

      Joined:
      May 29, 2000
      Messages:
      837
      Likes Received:
      0
      Trophy Points:
      0
      Year and Model:
      91 EB 2x4
      blinking o/d lights dont mean anything to me cause ive got a 91(overdrive is selected using the shifter not a button) but my freind has a 95. he had the same problem after playing in a little mud. i saw this thread and told him to reset his computer and it worked. i also told him it was most likely a temporary fix. about 2 days ago it started to hppen again(he thinks it was from driving around in the recent flood we had) we reset the computer but it did not fix it(now mind you he has lost overdrive completely) as i type he is checking his fluid(which he will only do if i make him) has any body else had this problem reaccure? i know its been about 6 months since the thread was last active. oh ya, i am going to make him change the trans. fluid and filter anyways since he has never done this before
       
    24. agoric875

      agoric875 Active Member

      Joined:
      March 29, 2003
      Messages:
      202
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Ellington Ct
      Year and Model:
      1995 Ford Explorer XLT
      Had that problem too about a year and a half ago, when i was on the beach, it started blinking, when i got home, i took it to the dealer, and they reset the computer. it didnt shift very smoothly when the light was blinking but after the comp. was reset, it shifted fine, and i havent had a problem since.
       
    25. bikerboy4lif

      bikerboy4lif Active Member

      Joined:
      September 8, 2002
      Messages:
      101
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      Wingham, Ontario, Canada
      Year and Model:
      1993 limited
      it shouldn't matter is u unhook both cables, once you unhook a battery cable the battery is disconected
       
    26. tsmith0794

      tsmith0794 New Member

      Joined:
      March 21, 2004
      Messages:
      2
      Likes Received:
      0
      Trophy Points:
      0
      City, State:
      San Jose
      Year and Model:
      1998
      OD Light flashing and what is the fix

      I was wondering what the final outcome was from those who posted a similar problem. Did a simple fix like disconnecting the battery cables work long term, or was it a short term fix, and a complete transmission replacement was necessary????

      When my OD light is flashing, i experience the rough down shifting from 2nd to 1st and the same going up from 1st to 2nd. Also that the torque converter is not locked when in OD. Help

      Tom Smith
      tom@amsmrp.com
       
      Last edited: March 25, 2004

    Share This Page






    We Support Our Troops!