The speedometer can go bad itself.
I had one stop working because the odometer gears got bunged up. It actually melted.
In your car the speedometer siognal puts out what is called a Hall Effect and it is used for fuel management and the cruise control.
Have you had any problems with either?
If not, it is a fully electronic signal and can still affect tannsmission shifts and anything dependent on a speed signal, (if it is picking it up from speedometer as oppsosed to the speed sensor.
Have you changed the tire and rim sizes?
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Wednesday, September 14th, 2011 AT 12:27 PM