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My dad has a 1994 F150 inline 6 4.9 L with a Manual Transmission. His speedometer fuse keeps popping, he has unplugged both speed sensor in the tranny and differential, but the fuse popped when idling and when it was not even running? If anyone has any ideas I appreciate any help, Thanks!
 

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Never heard of that happening... Call a ford dealer talk to the head service man and see if he's seen a fix to that or not... If he gives you the run around and has to see it and have a tech look at it tell him to piss off and call another. Eventually you'll find one willing to tell you what all the others already knew.


FE
 

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Check for damaged wiring going to VSS in trans. Disconnect it and see if it still blows. It is likely there are other things powered by that fuse also, I`ll check a Ford manual for you and let you know.
 
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