Speedometer issues on my UD1400/Vortex

[Mikey P]

After a break job earlier this year my speedo needle will jump around like mad every once in a while.

The mechanics can find any relationship to the problem and the break job but every few days she bounce around when I'm on the freeway @ 60 to 70 mph..


Could be my imagination my my MPG has gotten worse since.


anyone?

 

[Jimbo]

It's not 60 to70...

Most likely you are doing 40 to 50 mph...






the upper limit of the UD!

 

[Dolly Llama]

what do you need a speedo for?
it ain't like you'll ever be caught speeding in that thing
even in school zone


edit...Jim beat me to the draw.....


..L.T.A.

 

[handdi]

sounds like a loose wire like ground wire
or is it the loose nut behind the wheel
sorry had to do it

 

[dealtimeman]

mine was doing the same thing, you are going to need them to check both speed cables as one or both may be damaged or loose. simple fix probably going to cost around 85 dollars.

 

[Jim Martin]

on some trannys where the speed cable screws into the side....there is a little plastic gear in there that sets the speed of the truck....a lot of times the teeth on these gears get worn down and at high speed slip and that will cause the needle to bounce......easy to check just unscrew the cable and pull the gear and check it...they just slide in and out.....