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1990 f350

Discussion in 'Ford Trucks' started by fzzy, Feb 6, 2010.

  1. fzzy

    fzzy Junior Member
    Messages: 7

    So I have 1990 F350 460 auto the problem is that when going down the road say 25 30mph the speed odometer jumps from 15 to 25mph if I am going up hill and give it any gas the speed odometer goes to 0 until I let off the gas then it starts jumping around again I have replaced the speed sen and checked wiring and am unable to find any thing Wong has any had this problem and what did you do to fix it thanks