Ok I know this subject has been beat to death but cant find much data on the 4.6 engine. I am getting the rumble strip shudder thing when loading the engine and think I have an ignition miss. So am planning on changing plugs and wires. would like some part #,s for the double platnum plugs everyone uses and make and part # of some good aftermarket wires and where to get them from. Thanks

99 expedition xlt
4x2 4.6L

 

Just my personal opinion but I dont think you can go wrong with genuine Motorcraft plugs and wires. I've seen other brands that dont stand up nearly as well.