Awasome 2009 Ford Expedition Check Engine Light Ideas. This free video provides the steps to diagnose and clear a check engine light on a 2007 ford expedition xlt 5.4l v8. Web if your ford expedition has a flashing check engine light means that there is a catalyst damaging misfire (it can damage the catalytic converter and o2 sensors).

Web first start with the basics, chek your fluid levels (oil/coolant), make sure they are full, if you have the means to check the fuel pressure then check it, if you havent changed your. P1125 throttle position sensor intermittent. Driving with a flashing check engine light is a risk that should not be.