I replaced my coil pack's and spark plugs 6 months later my truck is miss firing again. What should i do?

 

1. Tell us what year truck and which engine.
2. What brand spark plugs and coils did you use?
3. Did you use dielectric grease?

 

2000/ 5.4
Motorcraft / Spark Plug -Duralast / Coil
i used dielectric grease

 

2000 Ford Truck F150 1/2 ton P/U 4WD
5.4L EFI 8cyl

 

Are you getting any codes? I'm not familiar with those coils but the consensus around here is to stick with Motorcrafts or the replacements from Uneeksupply or Global Automotive on Ebay motors. How bad is the misfire?

 

Duralast coils are not very good - that's Autozone's brand.