not necessarily. the reason i wanted a picture of the glow plug is because i can tell whether it is running too rich/too lean by the color and texture of the deposites left on the bottom of the plug. if the wire is all white and powdery looking i can dell that it was definatly a bad plug. the two things it could be are rich low end or bad plug, or simply the wrong plug that has gone bad as well. EAP, if you can get me those pictures they should tell us right away your problem