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speedometer needle waivers

I own a 1996 Ford Windstar with 143,000 miles on it (trips to Alaska to work for summer and trips across the country). I replaced the alternator 8 months ago on the last drive down from AK.....

I never know what speed I am going if I exceed 40mph - the needle flips around too much.


  • edited June 2008
    Lube or replace the cable from the trans to the speedometer.
  • edited June 2008
    There is no cable from the speedo to the trans. It was discontinued back when Moses crossed the Red Sea. OK, I'm exagerating.

    I can't tell you what the problem is but I have an 03 junkstar that the dealer has put 4 clusters in and the speedo still jumps. Not bad but it should not happen.
  • edited June 2008
    Yup, it's more likely that this car has an electronic speed sensor which can have the same effect when it fails.
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