I have a 2005 f150 and the odometer just went blank. Any ideas?
the system ground connection is shared by the startermotor and the chassis components like the ignition, fuel pump and ECU all which take a comparatively tiny amount of amperage whereas the startermotor is a HOG and needs the big fatty cable to handle the amperage....sadly they put the ground requirements of the startermotor and rest of the requirements on the same BOLT that attaches the black cable to the chassis/ground...after several hundred starts this connection is subject to high amperage through dis-similar metals and forms a layer of "semi-conductor" corrosion...which is where we are at now...you must take a wirebrush and having removed the bolt, wirebrush the lug 'till shiny and the chassis too....this way we will have SOLID grounding to the lightbulbs, dashboard...etc~
my odometer goes out and comes back when it wants to. sometimes you can hardly see it. not too readable. can it be the ground as well?
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