2badazzstangs,
Ugh! The only think that I can think of is that the speedo motor on the gauge cluster board is dead or dying. But, please beware of my sketchy electrical skills before you try to find a replacement panel. It's been too long since I had my instrument cluster out (I took off the luminescent gauge overlays) so I do not remember the back of the board. There is a tech article on this forum that shows how to replace the odo gear and I am pretty sure that the poster included plenty of pics and one shows the back of the electronic panel.
***edit:
Here it is, by Jinx .... (in the "4.6 Tech Important Threads" thread stickied at the top of the forum):
http://www.stangnet.com/mustang-forums/605742-pictorial-guide-odometer-gear-replacement.html
***end of edit.
When the VSS is out of the trans and you spin it with a drill, it should generate an AC signal (yup, alternating current). If it does then the drive gear in the trans may be worn or the speedo motor on the instrument cluster is tired. Let me check my Ford shop manual (this evening) to see about troubleshooting the speedo.
Sorry to hear that this is still a problem. I was sure "we" had this sorted out.
Chris
Ugh! The only think that I can think of is that the speedo motor on the gauge cluster board is dead or dying. But, please beware of my sketchy electrical skills before you try to find a replacement panel. It's been too long since I had my instrument cluster out (I took off the luminescent gauge overlays) so I do not remember the back of the board. There is a tech article on this forum that shows how to replace the odo gear and I am pretty sure that the poster included plenty of pics and one shows the back of the electronic panel.
***edit:
Here it is, by Jinx .... (in the "4.6 Tech Important Threads" thread stickied at the top of the forum):
http://www.stangnet.com/mustang-forums/605742-pictorial-guide-odometer-gear-replacement.html
***end of edit.
When the VSS is out of the trans and you spin it with a drill, it should generate an AC signal (yup, alternating current). If it does then the drive gear in the trans may be worn or the speedo motor on the instrument cluster is tired. Let me check my Ford shop manual (this evening) to see about troubleshooting the speedo.
Sorry to hear that this is still a problem. I was sure "we" had this sorted out.
Chris