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How about your speedo cable? If the speedometer is jumpy, you can count on the cruise control to be herky-jerky.



I didn't think that the speedo cable had anything to do with the cruise. Thought that the cruise was all electronic while the speedometer in this truck was all mechanical and they both didn't interface. Am I wrong?

The speedometer cable was squeeking especially in cold weather. It's kind of gone away and the speedometer was working fine but if the cruise and the speedometer cable is connected then that could be it.

I should replace the cable anyway so where is a good place to get it?