Speedometer and odometer not working
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Joined: Jun 2016
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Speedometer and odometer not working
Yesterday I replaced my speedometer cable, finished it up and took my truck for a quick spin and everything worked fine. Then I went to work and on my way home my speedometer and odometer quit working. Does anyone know what the problem could be?
Senior User
Joined: Mar 2014
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From: AZ
My bet would be it came out behind the speedometer. This is a snap in connection and you must be sure it did so. Otherwise check by the tranny to see if you forgot to put the retaining bolt back in and the tranny popped that connection out.
Senior User
Joined: Jan 2015
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Stick your finger in the hole on the transmission where the speedometer gear goes and see if the gear inside the transmission is worn out. These are plastic and can wear out pretty easily. Just don't get your finger stuck in there lol
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Speedometer nylon DRIVEN gear: Located at the end of the cable, nylon teeth can strip / Available from Ford (16 thru 21 tooth gears available) & auto parts stores.
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Speedometer DRIVE gear: On the output shaft of the trans. If this is a 2WD C6, it's not replaceable by itself, as it's made as part of the output shaft.
Speedometer nylon DRIVEN gear: Located at the end of the cable, nylon teeth can strip / Available from Ford (16 thru 21 tooth gears available) & auto parts stores.
Speedometer nylon DRIVEN gear: Located at the end of the cable, nylon teeth can strip / Available from Ford (16 thru 21 tooth gears available) & auto parts stores.
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Joined: Apr 2010
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Speedo gear
Speedometer DRIVE gear: On the output shaft of the trans. If this is a 2WD C6, it's not replaceable by itself, as it's made as part of the output shaft.
Speedometer nylon DRIVEN gear: Located at the end of the cable, nylon teeth can strip / Available from Ford (16 thru 21 tooth gears available) & auto parts stores.
Speedometer nylon DRIVEN gear: Located at the end of the cable, nylon teeth can strip / Available from Ford (16 thru 21 tooth gears available) & auto parts stores.
FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
Hello. Just wanted to say on my 80 custom with man 3od. Hope you kept the original nylon gear because it has numbers on it specific to your application. And when you order a new one your gona need to know what side of the tranny your speedo cable goes into. I searched everywhere for a new one and cant get them anywhere except cj pony parts on the interweb. Hope this helps.
As for sources, these gears are available practically everywhere. A friend of mine picked one up at our local O'Reilly's - in stock - and we live in a small town in Oklahoma. But, here are a few other sources for c0dz 17271-A from this search:
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