I have an early 99 with 278xxx miles and took it in to get new tires and they did a couple recalls and one was a cam position sensor. I started it after it was it was sitting over nite (about 10 degrees F). And It was a B!t6h to start. Finally when it did it cough and sputtered and wanted to die for about 30 seconds and blew black smoke for a bit. It started great before, got new Gplugs last summer and a new stancor relay in the fall. I'm thinkin I'm gonna call the dealer.

Can anyone give me advice? Its done that all weekend on a cold start even if i let the glow plugs go for 2 min.