LEASED VEHICLE NEW ON OCTOBER 18, 2014. PROBLEM BEGAN IMMEDIATELY AT APPROXIMATELY 200 MILES. WHEN PASSING ANOTHER VEHICLE OR ACCELERATING FROM STOP, EXHAUST FUMES FILL THE CABIN THROUGH THE A/C VENTS. OCCURS TO THE EXTENT THAT ALL WINDOWS AND SUNROOF MUST BE OPENED IN ORDER TO CLEAR FUMES. HAS MADE DRIVER AND PASSENGER(S) LIGHT-HEADED, UPPER RESPIRATORY IRRITATION HAS HAPPENED, AS WELL. GENERALLY OCCURS WHEN WINDOWS ARE UP AND A/C IS OPERATING. REPORTED TO DEALER, WAS TOLD "THERE IS NO TSB FOR THIS PROBLEM BASED ON YOUR VIN" (THOUGH ALL PRIOR YEAR EXPLORERS 2011-2014 HAVE THIS PROBLEM AND IT HAS NOT YET BEEN RESOLVED BY FORD, AND THERE IS A CLASS ACTION SUIT IN FL WHICH WAS GIVEN CLASS ACTION STANDING BY A JUDGE IN OCTOBER, 2014. MY VEHICLE IS NOT "YET" LEMON LAW ELIGIBLE BECAUSE THE NUMBER OF REPAIR ATTEMPTS HAS BEEN LIMITED BY HEALTH PROBLEMS. FORD SHOULD OFFER TO BUY EFFECTED VEHICLES BACK WITHOUT NEED TO GO THROUGH LEMON LAW, AS THIS IS A CARBON MONOXIDE AND "BREATHING EXHAUST FUMES" HEALTH HAZARD WHICH OCCURS ALMOST EVERY TIME THE VEHICLE IS DRIVEN.