emmisson light is on what are the cost for all for?and should they alll be changed at the same time ?there are 4 is that correcte
emmisson light on 2007 Ford Five Hundred
Your emission light being illuminated does not necessarily indicate a oxygen sensor issue. It will be wise to perform a diagnosis since guessing is not cheap. Many emmission components have coverage beyond the normal warranty. Call the local Ford dealership and ask what coverages that might apply to your vehicle.