02-03 4.6L engine difference

[billywh76]

does anybody know the diff between 02 4.6 explorer engine and a 03 4.6 explorer engine.the junk yard says theres a diff but don't know what.anybody know.thanks

 

[Captj122]

I just had my eng. rpled.--If I remember correctly, mine had a suffix of AD on the part #. But, I have no idea what the difference is. Maybe one of the Ford techs. on the forum will chime in.