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Chevy K2500 speed indicator shows to much


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Hello,

the speed indicator on my 98 Chevy K2500 no longer works. It shows too much. I have already completely replaced the speedometer without success and also the plug of the speed sensor on the gearbox.

 

Does anyone have a tip for me? Is it perhaps the complete speed sensor - see picture?

Issues in Speed Sensor.png

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I put a used cluster in my 98 and the speedo was off so they must be calibrated to specific drive trains..If it is doing the same thing with both of them I would suspect the VSS. With a scan tool that does data you can see the speed the PCM sees from the VSS and go from there, if it shows correct on the scanner then it could be a bad PCM or a bad speedometer

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  • 3 weeks later...

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