one badexpedish
Member
I have a 99 expedition and am installing an 01 5.4 engine in it Ive compared all the wiring plugs on the engine between the two years and it seems that they are the same with the exception of the power steering pressure sensor plug the 01 engine does not have it . What im wondering is will it work with out it or will i have problems like a check engine light on or something else? I can change the harnesses if it will be a problem. thanks