Have Ford Questions? Ask a Mechanic for Answers ASAP
A tune up consist of replacing the spark plugs and the fuel filter and in some case depending on mileage and runs about 200.00. That being said you may not need a tune up. The light coming on means the PCM ( computer) as seen a systems fault. To determine the cause of this you will need to have the system scanned and this issue addressed first. In some case a missing cylinder will turn the light on.