Vehicle didn't have a misfire just a bad coil in #8, so I decided to replace all Spark Plugs and Coils, Trottle position sensor,EGR pressure Feedback sensor,EGR valve,Idle Control valve after all this was done I got codes P0353 and P0356, checked connecters and rechecked spark plugs and also changed out coils 3-6 but Notting what can I Do now
What can I do to fix a misfire on 1999 Ford Expedition
by 915tommyboy74 in El Paso, TX on April 06, 2013
1 answer 2 comments
ANSWER by pushrod on April 06, 2013
MOTORCRAFT PARTS???? Hard to beat FoMoCo parts on a Ford vehicle, especially electronics!
COMMENT by 915tommyboy74 on April 06, 2013
COMMENT by pushrod on April 06, 2013
So much for that! Possible ecm but not likely. There has got be a circuit problem to 3 & 6. Check connectors with dvom and compare to working cylinder. Are those two cyls. misfiring so as you can tell it with engine idling? Maybe take it to a mechanic!
Got a PO353, PO356,PO358 after changing all Spark Plugs and all Coil on Plugs, also getting misfire when gas pedal is released Starts up fine Checked connects look okay Checked spark plugs look...