OK Suburban. A few years back they had problems on some models that the ignitor would fire and you got a sputtering sound and the flame did not ignite above the burner tube, but inside the burner. The ignitor also functions as the flame sensor and did not sense a flame and would shut down. Cycling the furnace off and back on a few times and it would finally ignite. When it cycled again, it may or may not light. Suburban replaced ours and it was a bit under two years old.
You might try replacing the burner assembly, but I would just get a new furnace.
Ken