its a 1994 canadian build suburban. she had no trouble at all then tonight she visited a freind for dinner the car sat for about 3 hours in about 15 degree temp (F). and now the temp gauge is at hot the oil is reading 40 the check gauges light is on and it wont start. the exhause pipe smells like gas. the engine cranks over.she is away on a trip about 1000 miles from me and I need to get it fixed help me please.

No quick fix here, someone needs to check for spark and fuel spray from the injectors, basic primary diagnostics.