[blustroker]

I have a 95 psd as well. Since your glowplugs aren't that old, if the relay is working as it should, first place I would look is the under valve cover harness. Fairly common issue. In some of the cheap (non motorcraft) replacement harnesses I've seen the wires for the glowplugs fail in just a few years. Only time my truck gets plugged in is when I know I am using it in the morning. Even at -3 the other morning, cycled glowplugs twice and she fired right up. She makes a lot of noise and smokes but starts. Glowplugs, relay, and harnesses are probably 5+ yrs old. Batteries are stickered 2007. If you use ether, disable the glowplugs as you can blow the tip off in the cylinder. I run 15-40w year round btw.