NHTSA Complaint #10882788 — 2014 FORD EXPLORER

I MAY HAVE ALREADY COMPLAINED, BUT THIS CAN UPDATE THAT. WHEN PULLING A LONG GRADE AND THE VEHICLE HAS DOWNSHIFTED,3500 OR MORE RPM AND ABOUT 65 MPH UNDER LOAD, I SMELL SULFUR IN THE CABIN. IT SEEMS TO BE WORSE WHEN THE COVERS FOR MY MOON ROOF AND SUN ROOF ARE RETRACTED. IT HAS BEEN IN TO A DEALER 4 TIMES NOW, SO I HAVE LOST A MONTH OF USE. THE LAST RETURN WAS ON FRIDAY 1 JULY. I HAVE NOT HAD A CHANCE TO TAKE IT TO A LOCAL MOUNTAIN THAT MAKES IT SMELL. FORD KEEPS WORKING ON THE BACK END, THE EXHAUST THERE HAS ALMOST NO SMELL. I TOLD THE DEALER THE SULFUR SMELL COMES FORM EXHAUST THAT IS ESCAPING FROM THE ENGINE UP TO THE BACK OF THE CATALYTIC CONVERTERS. THERE ARE TWO TURBOS ON THIS VEHICLE AND I BELIEVE TWO SEPARATE EXHAUST PATHS. SOMEWHERE UP FRONT THERE IS A LEAK THAT STINKS. THANK YOU *TR