hardbound
Registered User
New to me truck have no idea how old spark plugs are want to replace them. I'm aware of the modular motor issues with plugs having that said what brand of plugs seem to be the best for this series 5.4 .
Motorcraft platinum.... Your good...the 3v engine is the one to stay away from....04.5 and up...
New to me truck have no idea how old spark plugs are want to replace them. I'm aware of the modular motor issues with plugs having that said what brand of plugs seem to be the best for this series 5.4 .