2005 5.4 Knock Sensor Expedition
My check engine light recently came on and the code indicates a bad knock sensor right bank as well as a misfire plug 1 right bank. It has been suggested to me to change out the plugs and wires before trying to change out the knock sensor. Does that make sense? This vehicle really struggles to go up an incline and misses bad, but not all of the time. About two years ago it had the lower block replaced by ford due to the stuck injector issue, just as info. Also, are the coils on each plug? and will they also need to be replaced? Thanks for any info.