crazy speedometer?

[brolimo]

My speedo will jump up and down about 10 mph all the time. and the cruise doesnt work. speed sensor?

[Dave]

Yup rear wheel speed sensor

[brolimo]

is that the sensor on top of the diff? i thought that was the abs sensor?

[superduty4x4]

Originally Posted by brolimo

is that the sensor on top of the diff? i thought that was the abs sensor?

One in the same.

[ridiculously_necessary]

Originally Posted by brolimo

My speedo will jump up and down about 10 mph all the time. and the cruise doesnt work. speed sensor?

if that doesnt fix it, check here... Speedometer & Gauge Repair - Home