Glow Plug Problem
I have a 1994 superduty. 7.3 wo/turbo, automatic. I have replaced all 8 glow plugs, and now when I turn key on there is no clicking from glow plugs. Before...there would be clicking sound from glow plugs, and engine would have a hard time starting. Now no clicking but new plugs. Any thoughts? Also, where is the glow plug relay located? Thanks


