[BoomDiggity]

The spedometer in my truck only works after the truck has been driving for a while. whats the best way to free it up so it works everytime?

 

[Dizzle498]

It sounds to me like a connection problem. Maybe some loose wiring? Driving probably jumbles the wires so they connect again. maybe try check the connection wires, some electrical tape maybe your answer.

 

[cjones]

what vehicle?? year model engine 4x4 4x2

 

[BoomDiggity]

what vehicle?? year model engine 4x4 4x2

1979 Ford F-150 custom, 351m 4x4.

Dizzle, it is one wire into the back of the gauge cluster, looks like a hard wire, i think. Not sure where to start

 

[Boghog]

Have you checked the speedo cable. make sure it's plugged in securely at the speedo place a drill on the trans end and spin the cable and see if the speedo works.If thats ok check the driven gear at the trans,where the speedo cable connects.

 

[Poppy]

Try lubing the cable