Basement smells similar to a diesel truck after turning on bake? we turned on the heat for the first time this go down...

we turned on the heat for the first time this go down and the basement started smelling approaching exhaust from a diesel truck. Could it be the furnace? its kind of out-of-date (probably like 10-15 years)
My thermostat have a collection of 55-95 degree....
Answers:    Yes. if you hold oil fry, the fumes are very similar to diesel. you may own insufficient draft throgh the chimney alowing fumes into your home. or it may be having delayed ignition cause a "puffback" caused by dirty nozzle, electrodes, or ruin cone. in any bag you should have it serviced and checked by a qualified technician.
What would result in crucial AC cooling admirer...
It's time to telephone call a furnace repairman! Carbon monoxide kills in need discrimination!