Orijinal gönderinin sahibi: oldturkey03 ,
jack mehoff, it is possible that you have a bad speed sensor. This sensor sends the signal to the speedometer and from there a processor sends the signal to the ECM. Your speedometer gets its feed from the same place as the odometer. Typically if you have a working odometer, but intermittent speedometer, then the instrument cluster itself is bad. Hope this helps, good luck.