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"If the problem is vague and unobservable, the same will be true for the
solution. " - Plsek and Onnias
> Checked kiatechinfo.com for manual transmission diagrams and information;
> changing or adding oil to the transmission case requires removal of the
> speedometer driven gear
<snip>
That would be correct.
> however to save my soul I can't find or see it (from
> the upper motor area, anyway) on the case. There is an electrical connector
> in the area shown on the diagram however this should be a mechanical device,
No. Most new cars do not have speedometer cables. I don't have a rio,
but on the sephia, the connector(and the drive gear you have to
remove) are behind and below the intake manifold. Usually it's got a
single 10mm nut, access to it is easiest from the passenger side
fender.
Good luck.
Chris