First off I would like to thank everybody on this site for their great comments and feedback to my questions

I have a 1995 Chevy pick up 65 diesel
When I was removing the lower intake manifold for some work I hit the intake manifold on the glow plug relay and arced the hot lead. Now my glow plugs do not turn on. I thought I must've damaged the relay so I replaced it with a new one. This did not fix it. I've checked power to the input side of the glow plug relay and I have power. If I run a jumper wire from the intake of the relay to the output of the relay the glow plug light comes on on the glow plugs work. All glow plugs are brand-new. Any ideas of why my glow plug relay is not working