My speedometer stopped working and also when i drive its jerking
I stopped to run an errand..and before i shut my car off it was fine the speedometer was
working, shut it off, turned it back on then drove a ways. realizing it was jerking when i
was driving and my speedometer is not working
1) Inspect the vehicle for any leaks (engine and transmission). Excess moisture can cause these problems. 2) If you are able, disconnect the output speed sensor (transmission). There is a possibility of a sensor failure. By disconnecting, see if the problem went away. If the problem is gone, replace the output and input speed sensor in the same time.
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