You can try checking the two connectors behind the gauge cluster are snug and tight. You also need to check the transmission output sensor or maybe even replace it. Your speedometer is electronically-controlled via the output sensor.
If after the two test the speedo still fails to work, you have to replace the gauge cluster. Don't worry about losing the mileage odometer, it is stored in the PCM.
Thursday, September 4th, 2008 AT 7:02 PM