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2003 Kia Rio Question: speed

 

Question

mavrick.bush, 1.5L 4 Cylinder, Colorado Springs, CO, June 26, 2010, 22:06
 Rookie

my speedometer only works part of the time whats wrong

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  • Answer #1

    Auto Tech Plaza (see my shops), December 23, 2010, 07:40
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     Enthusiast

    Most newer cars have an output speed sensor instead of a cable. Its pretty common for those to go out.

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  • Answer #2

    bulldogbil April 18, 2012, 16:06
     Rookie

    ours was fixed just by cleaning the sensor. the sensor on our rio is not on the transmission but on the right front drive axle just behind the rotor. it counts the revolutions of this cog wheel like sending unit that spins with the axle. if you remove the right front tire and can see a small flexable cable coming from the fender to the axle ...your on the rigt track.. if not....disregard. remove the bolt that holds the sensor in place. a 10 metric i believe. than you will see a small brass sliver on the sensor. clean that sliver off. it can collect debris, tack from fresh asphalt, road oils and such and slowly quit reading the revolutions. give that a whirl.

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