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    dfuller0227's Avatar
    dfuller0227 Posts: 77, Reputation: 1
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    #1

    Aug 16, 2013, 09:23 AM
    97 expedition speed thermometer not working
    I have a 97 ford expedition 4wd 5.4 motor and my speed thermometer.stop working and my truck is putting like its misfiring I hooked up my box and no.codes came up at all what is the problem ?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Aug 16, 2013, 09:29 AM
    "Speed thermometer?" Perhaps you mean "speedometer" - did you do anything after your previous post on this topic - see: https://www.askmehelpdesk.com/cars-trucks/97-ford-expedition-speed-sensor-location-758854.html#post3510012
    dfuller0227's Avatar
    dfuller0227 Posts: 77, Reputation: 1
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    #3

    Aug 16, 2013, 11:53 AM
    Quote Originally Posted by ebaines View Post
    "Speed thermometer?" Perhaps you mean "speedometer" - did you do anything after your previous post on this topic - see: https://www.askmehelpdesk.com/cars-trucks/97-ford-expedition-speed-sensor-location-758854.html#post3510012
    No because the speedometer started working that day and I haven't had a problem with it sense until yesterday I went and bought a speed sensor to see if that would fix the speedometer but its raining and it hasn't stopped yet but would the sensor also cause the truck to act like its misfiring also ?
    dfuller0227's Avatar
    dfuller0227 Posts: 77, Reputation: 1
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    #4

    Aug 16, 2013, 02:16 PM
    Quote Originally Posted by dfuller0227 View Post
    No because the speedometer started working that day and I haven't had a problem with it sense until yesterday I went and bought a speed sensor to see if that would fix the speedometer but its raining and it hasn't stopped yet but would the sensor also cause the truck to act like its misfiring also ?
    Ok I changed the sensor the speedometer is working but it still putting like its misfiring and no codes still ain't coming up and my check engine light still isn't on
    dfuller0227's Avatar
    dfuller0227 Posts: 77, Reputation: 1
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    #5

    Aug 19, 2013, 06:22 AM
    Quote Originally Posted by dfuller0227 View Post
    Ok I changed the sensor the speedometer is working but it still putting like its misfiring and no codes still ain't coming up and my check engine light still aint on
    Ok the check engine light came on Fri. It was my #7 misfiring so I changed the coil and the spark plug I drove out of town for the weekend came.back yesterday everything was OK this morning while I was driving the overdrive light, abs light, A4wd light, and the 4x4 lights was all on flashing on and off and my wiper blades starting acting funny also they would move and then stop and then start back and then my check engine light came back on I check for the codes and 1 was p0307 which is my #7 misfiring again and p0500 which is speed sensor malfunction what is wrong why is all this stuff popping up ?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #6

    Aug 19, 2013, 07:27 AM
    When Vehicle Speed Sensors (VSS) fail on Fords, they can trigger a host of codes--all that you mentioned and more. Try replacing the VSS and clearing all codes.
    dfuller0227's Avatar
    dfuller0227 Posts: 77, Reputation: 1
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    #7

    Aug 19, 2013, 09:13 AM
    Quote Originally Posted by TxGreaseMonkey View Post
    When Vehicle Speed Sensors (VSS) fail on Fords, they can trigger a host of codes--all that you mentioned and more. Try replacing the VSS and clearing all codes.
    The VSS is the speed sensor that I had changed on Friday so you are saying for me to replace that one with another brand new one ?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #8

    Aug 19, 2013, 10:54 AM
    No. Your writing is not always clear. I'll pass on this one.
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