Question

1998 Lincoln Navigator 5.4L with engine code P0303, how do I fix this code?

Answer 1

HI there,

This code indicates a misfire on cylinder 3. Most of the time the issue is a result of a faulty spark plug or ignition coil. You can try swapping the coil with the one next to it and see if the misfire moves with it, if it does, then you know the coil is the problem.

Answer 2

P0303 LINCOLN - Cylinder 3 Misfire Detected
Read more: https://www.autocodes.com/p0303_lincoln.html