Having problems with your Ford F-150 ?

MY Ford 2001 Ford F150 Super crew Lariat with 5.4 L v8 EFI has 170, 000 miles,,,is misfiring on cylinders 3 and 7 (codes P0303 & P0306) and a fuel trim problem (code P0174) So Far i have: Changed the plugs swapped coils cylinder numbers remain constant replace EGR Pressure Sensor Replaced Mass Air Flow sensor I am running out of things to try here I need to get this think up and running well yesterday. if your a Ford specialist and you know what this is please answer this my pati

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

Well you've done the electrical, it may be an injector problem or a compression fault, no 3 and no 7 are not related to each other, im sure you got the right wires on the plugs so look elsewhere
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