Question about 2003 Ford Explorer Sport Trac

2 Answers

My transmission in my 03 Sport Trac (4wd, 6cyl, XLT) is skipping/hesitating.

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  • 10 more comments 
  • Sherry Hobbs Oct 06, 2010

    I first noticed it in reverse. I notice it more in the lower gears. I stopped driving it right after I noticed it. So, I am not sure if it does it in higher gears. I know the fluid needs changed. That was the first thing we checked.

  • Sherry Hobbs Oct 06, 2010

    Okay. Thank you. I will get on that ASAP and let you know what happens. (I am not driving it until it's fixed.)

  • Sherry Hobbs Oct 07, 2010

    Could it be something as simple as needing spark plugs? It's at 96k miles and never had a plug change. I drove it the prior weekend on a long trip without issues. It does not overheat, leak or make noise.

  • Sherry Hobbs Oct 07, 2010

    I have the tranny filter on order. While I wait for that, I want to look at other possible causes.
    Could it be that it's not the transmission at all? I've been looking on several forums for other possible answers. It hesitates in reverse and low gears. I have not tried it at high speeds since the issue popped up. It does not overheat, idle rough, or make noise. It's at 96k and never had a tune up. I was told that it was not necessary until 100k. (I think that's hooey.) What do you think?

  • Sherry Hobbs Oct 07, 2010

    Thanks. I jumped the gun on pre-diagnosis! LOL. What else should I check?

  • Sherry Hobbs Oct 07, 2010

    How can I check that? It idles fine.

  • Sherry Hobbs Oct 07, 2010

    That is what I have been telling my husband for years. Sigh. Thank you.

  • Sherry Hobbs Oct 07, 2010

    Do you know where I can find a link to the firing pattern? Also, two of the plugs are unreachable with standard tools. Is there a trick to getting them out?

  • Sherry Hobbs Oct 07, 2010

    Not so good. My husband broke one new plug (not in the motor) and mixed up the wires. I now need the firing pattern/wiring diagram. I also need to know how to get at the plugs that are not reachable with traditional tools. Since my hands are smaller, I may have to do this myself. It will bee the first plug that I've changed in a few years.

  • Sherry Hobbs Oct 08, 2010

    What is the name of it? I have to order it online from where I live.

  • Sherry Hobbs Oct 26, 2010

    It was the plugs. I noticed a teeny rough shift. I had the tranny fluid changed today and it's running great! Thanks!

  • Sherry Hobbs Oct 26, 2010

    It was the plugs. I noticed a teeny rough shift. I had the tranny fluid changed today and it's running great! Thanks!

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  • Expert
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Hi! One sure problem with the transmission, it's the torque converter. Please have the torque converter replaced and you'll be good. A smooth drive and shifting will be noticeable after the procedure. Hope this helps and thank you for using FixYa!

Posted on Oct 06, 2010

  • 2 more comments 
  • dj_relly999
    dj_relly999 Oct 07, 2010

    Thanks for the clarification. You can check the plugs and plug wires for they may be worn and current is jumping out.

  • dj_relly999
    dj_relly999 Oct 07, 2010

    How bout the MAF (mass air flow) sensor? The MAF has big contribution on engine performance specially on the idling and vaccum supply. If the MAF is faulty you'll have a rough ride.

  • dj_relly999
    dj_relly999 Oct 07, 2010

    Well thats good to know, no need to check the MAF. Check the plugs and plug wires first.

  • dj_relly999
    dj_relly999 Oct 07, 2010

    Hows it going?

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  • Ford Master
  • 11,800 Answers

If it does that in all gears then there's a problem with the hydraulic pressure of the gearbox.
First of all you should replace the transmission oil and its filter.
If the problem persists then add an additive like this one
http://www.autobarn.net/lucas-10441.html
If the additive hasn't eliminated the problem then the oil pump of the gearbox is worn out and will have to be replaced. Since for that the transmission will have to be partially dismantled, it's a shop job and it will be expensive.

Posted on Oct 06, 2010

  • 3 more comments 
  • Azrael SRL Oct 06, 2010

    In reverse or low gears is where there's the biggest forces are and if the oil pressure is low it's where you will see the first slips. Replace the oil ASAP, if you let it slip for longer the pressure plate will wear out and the transmission will gonna have to be completely overhauled, for an even bigger price.

  • Azrael SRL Oct 07, 2010

    You should definitely try it at all speeds. If it behaves the same then it's more likely that is a problem in the engine.
    The sparkplugs must be changed every 50,000 miles - if you haven't done this until now you shouldn't wonder why the engine misfires/hesitatesat high revs. Change them immediately.
    Actually a full revision should be done every 25,000 miles., especially if you use the car on rough roads.

  • Azrael SRL Oct 07, 2010

    Remember - better late than never.

  • Azrael SRL Oct 07, 2010

    This is the firing order 1-4-2-5-3 -6 here's a link to one from the same family. http://www.therangerstation.com/tech_lib...
    To get those ones you will need a key with an articulation in it - $15 at every service station.

  • Azrael SRL Oct 08, 2010

    It's called a sparkplug wrench and it looks like this
    http://www.toolstation.com/images/librar...

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