Originally Posted by Roguestang
Definitely a missfire then. Possibly not gapped properly? They should be at .54. I'd try to pull codes as a start and go from there. Did you talk to the mechanic about it? And if I'm not mistaken, these 4.6's usually like regular copper motercraft or autolite brand. Thats what I always use.
Well Bosch ones I got came no gapped required idk if you tell in the pictures how they look different from other plugs but the motorcraft plug might've been gapped I didn't see him put that one in but in sure he did but I will recheck it
no I didn't talk to the mechanic he's one of those do car work on the side jobs but we prolly tell me to bring to him and he'll fix it but I'm want to do it myself first then take it to him if still not right
And so your pretty much saying don't get platinum plugs just get motorcaft?