Owned my '91 NA 7.3 idi now for only a couple months. No diesel experience at all. Yesterday after work I went to start the truck. It was about 25 degrees F outside and truck had sat for a couple days. One pump to set idle, wait to start light goes out, I crank it over. I probably cranked for 5-7 seconds. During that time it.. coughed? 3 times before it finally came to life. PO installed: Facet lift pump. New glow plugs (his words.. "the ones recommended on that oil site") New GP controller (his words.. "recommended one was expensive so I got a cheaper one") Lot of wiring repair regarding the glow plugs. Now, it started and runs fine, but it seems to me it should start easier than this even at 25 degrees. When it was warmer, it would "cough" once before coming to life. Is this normal? If not, what could be causing this?