I have the codes and the probelms figured out, however i do not know what to do or how to fix theses problems.

P1491 Radiator fan relay control circuit
P0300 Random Misfire Detected
P0303 Cylinder 3 Misfire Detected
P0442 Evaporative Emission System Leak Detected (small leak)
P0455 Evaporative Emission System Leak Detected (gross leak/no flow)
P0305 Cylinder 5 Misfire Detected
P0307 Cylinder 7 Misfire Detected

those are the code and the problem. what do i do for each one?

thanks.

 

with you having misfire codes on one whole side of the engine, I would say head gasket time. IDK about the rest off hand. Are you having any issues with the rad fan?

 

Need a little more information about the truck. How is it driving? How long have you had the the light? Have you done a cold boot or cleared the codes? Have you kepted up with your regular maintenance?

 

its and 2002 dodge ram 1500.
it drives fine but sometimes when i start it, the engines idle just goes up and down, like someone is pushing the acc. pedel on and off. however after driving for awhile and you stop it will not do that. the lights been on for awhile now, cant think of the exact amount of time. the the maintenance was kept up all the time with oil change, fluid checks and what not.