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Speedo Jumping

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Old Feb 6, 2013 | 07:50 PM
  #1  
C350CREW's Avatar
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Speedo Jumping

Speedo started jumping out of nowhere Friday. Everything fine, made a stop and after restart, it started messing up.
Found a post about a similar problem where the member had to change the PSOM.
Do you guys think this could be it or should I pull the sensor and start there? My cruise is also not working? Can this be related?
The 3rd brake lite is working.
 
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Old Feb 6, 2013 | 07:57 PM
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When mine was jumping it was a bad spot in the wiring from the frame to the VSS...
 
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Old Feb 6, 2013 | 08:07 PM
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https://www.ford-trucks.com/forums/1...l#post12543853
 
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Old Feb 6, 2013 | 08:24 PM
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I will start at the vss and check everything. Was cold, cold last week, lots of snow. Went thru some deep snow drifts, so I thought maybe a wiring issue or the snow may have pulled on a wire to loosen it.
Thanks
Any thoughts on the cruise?
 
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Old Feb 6, 2013 | 09:44 PM
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Originally Posted by Action4478
When mine was jumping it was a bad spot in the wiring from the frame to the VSS...
Also might try cleaning the VSS...it gets covered in crud and makes things jump around.
 
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Old Feb 26, 2013 | 09:42 AM
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Does anyone have an idea on where I could get a list of all of the abreviation used with diesel trucks and the meaning of abreviations - thanks
 
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Old Feb 26, 2013 | 10:50 AM
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Originally Posted by melgu
Does anyone have an idea on where I could get a list of all of the abreviation used with diesel trucks and the meaning of abreviations - thanks
https://www.ford-trucks.com/forums/1...nsor-info.html
 
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Old Feb 26, 2013 | 10:51 AM
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Originally Posted by melgu
Does anyone have an idea on where I could get a list of all of the abreviation used with diesel trucks and the meaning of abreviations - thanks
there is a sticky thread around here somewhere with all that info..if I come across it I'll post it up.
 
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Old Feb 26, 2013 | 10:55 AM
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Originally Posted by maverick1701
there is a sticky thread around here somewhere with all that info..if I come across it I'll post it up.
check here..

https://www.ford-trucks.com/forums/1...finitions.html
 
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