I got the code and the problem, however I do not have the solution to them. I need help from you guys to get this thing turned off.

P0300-Multiple Cylinder Misfire
P1491-Radiator Fan Ctrl Relay Circ
P0442-Evap Leak Monitor Medium Leak Detected
P0455-Evap Leak Monitor Large Leak Detected
P0305-Cylinder #5 Misfire
P0307-Cylinder #7 Misfire
P0303-Cylinder #3 Misfire

 

Thankfully, a large Evap system leak can be the cause of the cylinder misfires, so tracing the Evap leak may fix all but P1491 and that don't sound like a tough one.

I have a diagram of the entire Evap system in the FAQ section may help you...

 

You can also spray a carb cleaner or suck around the hoses with the engine running to find you leaks. When it gets sucked in (if it does) the idle speed will change.

 

I use an unlit propane torch. Doesn't make a mess like carb cleaner does

 

Could the misfire mean time for new head gasket?
Also did not find one for evap. system one. Am I blind?
https://dodgeforum.com/forum/3rd-gen-ram-faqs-133/