What are common reasons my Ford Mustang has a rough idle?
What are common reasons my Ford Mustang has a rough idle? What are common reasons my Ford Mustang has a rough idle? While there are a variety of reasons your Ford Mustang has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. See what others are asking about their Ford Mustang. What makes a Ford Mustang Run too lean? The heat of the exhaust can also bake the wiring going to/from them over time. If an oxygen sensor goes bad, it can make your Mustang...