Speedometer Anomaly
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Joined: Aug 2006
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Speedometer Anomaly
Hi Ford Fans,
My 77 F250 did a funny thing recently and kept doing it. Suddenly, the speedometer gage (needle itself) began "jumping". As I'm driving, it will hover somewhere around where the accurate speed is, but also bouncing up say 30-40 mph higher than that, and then returning. Anyone experience this, is it fixable by a guy with a few tools and a rudimentary knowledge of mechanics? I'd rather remedy it myself than go to a mechanic these days. Thanks!
Tim
My 77 F250 did a funny thing recently and kept doing it. Suddenly, the speedometer gage (needle itself) began "jumping". As I'm driving, it will hover somewhere around where the accurate speed is, but also bouncing up say 30-40 mph higher than that, and then returning. Anyone experience this, is it fixable by a guy with a few tools and a rudimentary knowledge of mechanics? I'd rather remedy it myself than go to a mechanic these days. Thanks!
Tim
Elder User
Joined: May 2007
Posts: 514
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From: Northern Colorado
Sounds like your cable is binding in the cable sheath - probably gumming up with crud. Try removing it and flushing it with a good lube spray first. If you can't get it cleaned/freed up, the cable can be replaced, or the cable/sheath assy.
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TheKirbyMan
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Sep 1, 2019 04:12 PM
