Crazy Speedometer ('91 Nissan pickup)

[MysterYvil]

A couple of years ago the speedo on my '91 Nissan pickup (analog speedo, 5-speed gearbox) started to occasionally read about twice the speed. Sometimes it even reads more than that, enough to peg the needle at 30 mph.

It is happening more frequently now. I have no speedometer-fu, so I have no clue what's going on.

Any ideas?

 

[MikeGyver]

Does the odometer roll at twice the rate too?

 

[Caddywumpus]

Speedo cable is wearing out. The measuring end is getting worn down and slipping.

 

[MysterYvil]

Does the odometer roll at twice the rate too?

I never thought to check.

Speedo cable is wearing out. The measuring end is getting worn down and slipping.

Thank you! I'll get that checked out.