pulled code p0304 ignition help

[Dead President]

Out of nowhere I got a rough idle and what seemed to be a misfire when giving it gas. Shortly after I got a check engine light. Went to auto zone and the tool they use pulled a code p0304 which is anything from faulty ignition to vaccuum leak to fuel problems. He said the 1st indication would most likely be an ignition problem because the manual he was referring to.

anyway, I did a search on that code and what I found was a coil on plug gone bad in bank 4. I'm not sure if that exact code pulls which coil is bad or its just a code that means any of the 8 coils are bad.

How much am I looking to spend for one coil and is there a write up on this? Looking to tackle the job myself along with new spark plugs. any input would be appreciated

Chad

 

[zexls]

I just had that problem with tuning with n02, the coils were about $39.

 

[lsbit]

How much am I looking to spend for one coil and is there a write up on this? Looking to tackle the job myself along with new spark plugs. any input would be appreciated

Chad

Do a search and check out my tech pages. Hopefully that will help you out!

 

[Quik LS]

it is a great article -> http://www.lincolnvscadillac.com/tech/Lincoln-LS/Coil-Replacement/