2012 Caravan - MIL on and no code
I have a 2012 Grand Caravan SXT. The MIL came on and spit out a P0306. When I took it to the dealer, MIL remained on but no code. Van chugs at 45-60 MPH front of van shakes. I was informed by the Dodge Dealer I have a bad head. Dodge Dealer has ordered new head, valves and gasket. The van has 25,354 miles.
Is the dealer missing something? Or just replacing parts because they aren't sure what is happening. FED up with DODGE, and I am a Dodge fan. Any thoughts?