I have a 1999 F-150 with the 4.6 engine. I'm pretty new to this forum and have learned quite a bit from it. I've changed my plug wires and I'm wondering what difference, if any would be made by installing new coil packs.

Feedback would be appreciated.

Al Paschall
Humboldt, TN

 

No improvement is made by replacing properly functioning coils with similar replacements. They're replaced when they go bad or can be upgraded.