Arching?? not sure

[sleepintalon]

hey guys well i just checked my plugs today and found that on #3 cylinder the top of the plug is brown, like its burnt. now just to clarify i don't mean the electrode, i mean the part that connects to the wire. last time i changed plugs i noticed the same thing so i changed wires, cuz the wire was corroded. as of now the wire is fine. i changed the connection on the spark plug to see if that does anything. what could be causing this?? thanks for any help

 

[psychlow]

Could be that your plug wire wasn't seated far enough down onto the plug connector...

Do you use contact grease in your plug wires? If not, you should. It may fix your 'problem'.