Question about 2000 Mitsubishi Galant

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Speedometer wont work

My speedometer stopped working(wont register any speed) and my "service engine soon" light turned out both at the same time...what could this be...??


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Most cars have one main vehicle speed sensor (vss). The VSS in front wheel drive cars is mounted in the transmission. A gear in the tranny turns a small gear on the VSS. If a tooth of the gear on the VSS is damaged, you can get that erratic speedometer jumping like you're experiencing. A malfunctioning VSS can cause problems with shifting and with the activation of the anti-lock braking system and cruise control. Have a Transmission shop inspect your VSS and replace if necessary, if your handy with tools. you can buy the VSS and replace you self. The speed sensors on the Galant are called pulse generators and need to be replace as a set. Located outside of the transmission right on top.
Good luck!

Posted on Dec 09, 2009


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