i've got a check engine light on and got codes p0300 & p0304,i checked the plugs it has fairly new champions # 4071 and wires,dist cap has no moisture in it and no cracks,i swapped # 2 & # 4 cylinder,cleared codes drove truck for a few minutes light came back,still has p0300 & p0304.Any ideas where i can look next?

 

whatthose codes pull up?

 

Do you fell a miss on it. Because according to the comp. You should be. If you dont and everything feels fine. It might be you distributer mod. or the crankpostion sensor. If you do feel the miss you should replace your wires and plugs and cap. it should be about $30 for it all. That is cheap insureance. You could try cleaning up your injectors as well.
well here are what the codes meen. Im sure you know but for others to know too.
P0300 (M) Multiple Cylinder Mis-Fire Misfire detected in multiple cylinders
P0304 (M) Cylinder #4 Mis-Fire Misfire detected in cylinder #4
https://dodgeforum.com/forumid_108/tt.htm

 

Yea, I can feel the miss,In fact i could feel it start missing a little before the light came on and before i could get to Auto zone to check it,it came on.The truck used to belong to my brother and he was real good about maintence on it,I'll start with a Cap & Rotor,and work my way round...thanks

 

Replaced Cap & Rotor...miss still there(cap was corroded rotor was too)anyway,friend of mine suggested moving #4 injector to #2...i did...misfire moved to #2...replaced injector...WALA....fixed...Thanks

 

Good to hear you got the problem fixed.