TwinTurbo.NET: Nissan 300ZX forum - Speed sensor or instrument cluster diagnosis?
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Subject Speed sensor or instrument cluster diagnosis?
     
Posted by jmhale on October 25, 2021 at 4:32 PM
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Message Before I take this to my mechanic, do these symptoms sound more like a sensor or cluster issue?

I have a 90 300zx NA base model. Speedometer stopped working 6 weeks ago. This had occurred intermittently with MPH at zero when not working. Also when the speedometer stops, odometer slows way down, maybe 1 mile on odometer for 5 actual miles. When speedometer is working fine, odometer is fine also. While it was intermittent originally, it has progressively gotten worse, speedometer rarely working now with slowed down odometer.

Thanks!

     
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