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Old 10-14-2013, 04:00 PM   #1
Dave in Boise
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Join Date: May 2010
Posts: 330
Default Speedometer Troubleshooting question

Hi All,

Over this summer, both of my cars have had their speedometers stop working

1) The coupe stopped after I had to pull out the dash and replace the ammeter.. Can the cable pull short out of the speedo end, or did flexing it perhaps cause the inner cable to snap?

2) The Tudor just stopped working.. no external factors I can see.

Big questions.. How best to test the system to locate the trouble? Take the bottom off and spin it with a drill from under the car to eliminate the sending gear, or pull the cable from behind the speedo and see if it spins while the car moves forwards, or?

Not sure where to start, as I cannot swap 1 component out for a known good one as both systems are suspect. Need some advice please

- Dave
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