ranger speedo trouble

[ranger fan]

Hi. Im new here and am looking for some help figureing a problem with my truck. I have a 1994 ranger stx and the speedo works fine up to 45, then jumps up and down any speed after that. any ideas?

 

[edailey002]

94, is it gear driven or electronic? If it's mechanical (gear driven ) take off the speedo cable at the side of the tranny, clean the area around it fairly well, take an 8mm or maybe 5/16 socket and CAREFULLY remove the small bolt holding the coupler into the trans. I say carefully because it's small and you DO NOT wanna break it. When you pull that out there will be a gear there and another youll need a light to see inside the trans. If they are both in good shape then replace the speedo drive cable. I think its the same for electronic too except its a wire and not a cable going to the speedo drive gear. If it is electronic.....well im not much good past what i told you for cluster electronics.

 

[ranger fan]

speedo

Thank you ill try it out.