FYI- Ford has put out a bulletin on Ford Explorer's that the exhaust has a design fault allowing the carbon monoxide to come into the cabin of the vehicle. If your car is over the 36,000 miles you have to ask Ford to pay for the repair - it has been almost a month and the situation still has not been fixed and I had to pay $100 "in good faith" If you have this situation please go to your dealership and report it to the National Highway Traffic Safety Administration - www.SaferCar.gov