P0720 2008 Ford F150 - STX 4.2L

Question

We replaced the Output Speed Sensor Circuit, and the ignition part. The speedometer still is not working and the odometer is still showing miles that was before the replacement.

Answer 1

Hi there,

Since replacing the sensor hasn't solved the issue, it's likely a problem with the wiring. Here is some info for you.

P0720 FORD - Output Speed Sensor Insufficient Input

Read more: https://www.autocodes.com/p0720_ford.html