its a v8 4.0 S-Type.

ok, little history, I used to have a misfire on number 3 and 8, that was fixed by changing all the spark-pluggs and changing 2 coils.

now I have a misfire on 2 and it happens when your going between 45 mph and 55. when its idling its fine or above 55 its fine, its always after 45mph

what do you think?

thanks for your help

 

sounds like more coil pack issues, when one goes they all start to go i had the same issue. Also when i was having missfire issues i changed my mass air flow sensor. But check all your coil packs first

 

Good advice.

 

Jaguar struggled with S-Type coil suppliers in the early years (1999-2002). Several different designs were tried, and the coils were somewhat better in the 2003-2004 models. By the 2005 models, the coils were apparently up to average industry standards. Still not great, but at least better than a poke in the eye with a sharp stick....

 

Lincoln LS uses the same coil.

 

Thank you so much everyone, that helps a lot.

Thank you again