ABS Light + Speedo Fluc.
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Joined: Mar 2004
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ABS Light + Speedo Fluc.
Hey guys, I'm hoping you can help me out. My father has a 2000 F-350 Super Duty with about 207,000 miles. When he hits a bumb, his ABS light will come on, and while that's on, the speedomoter will fluctuate and jump. Any ideas as to what this means? Thanks in advance.
Postmaster
Joined: Mar 2001
Posts: 4,968
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From: So Cal
Sounds like the speed sensor. Not sure on your model year but the mid 90s models had a sensor on the differential. It is about the size of a walnut and is the only thing with wires sticking out of it that is on the fron top part of the diff.
It is possible that there is a loose wire or connection from this sensor to the computer which controls the speedo and ABS. It is also possible the sensor is going bad costs something like $15 and is easy to replace unless there is evidence of the sensor ring inside the diff being chewed up, in which case you probably will need a fluid change.
Good Luck,
Jim Henderson
It is possible that there is a loose wire or connection from this sensor to the computer which controls the speedo and ABS. It is also possible the sensor is going bad costs something like $15 and is easy to replace unless there is evidence of the sensor ring inside the diff being chewed up, in which case you probably will need a fluid change.
Good Luck,
Jim Henderson
