Was the car towed home or it just stopped working? A diesel engine needs 3 things to work: Air, fuel and compression. Temperature is a factor, but since you're in TX, it's not likely an issue. If any of these 3 is lacking the car won't start.
Fuel: Is fuel reaching the engine? Are there any obstructions between the tank and the engine? Is the Injection Pump (referred in this forum as IP) working and delivering the fuel?
Air: Is your filter clean? Any obstructions between the air filter assembly and the pistons?
Compression: If you have the capability you can test the cylinder compression or have a professional do it. Since diesels don't use spark plugs, they rely on engine compression to work.
If you have more details about the car, maybe you will get more detailed help, but hope this helps a bit.

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[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT