Got a code po305 on 2011 3.6 flex fuel. Due for new plugs so then I found it is a quite involved procedure as in removing top of the intake manifold to get at the plugs. Just wondering what would be the cost range of having this done at a dealer. Not to say that plugs alone are going to fix the po305 problem.

 

I would call the dealer and ask.

 

You just have to be careful. That upper intake breaks easily if you don't align it up right going back together. One of these days I'll do a tutorial, but I'm too busy for now.




On a side note: Don't let your 3.6 plugs or a misfire go too far. The coils don't take much abuse and neither does the PCM driver if you get a coil that goes down.