What parts are needed to tune up a 2002 Ford E350?

To tune up a 2002 Ford E350, you typically need to replace spark plugs, spark plug wires, the air filter, and the fuel filter. Additionally, checking and changing the engine oil and oil filter is recommended. You may also want to inspect the ignition system and replace the distributor cap and rotor if necessary. Finally, checking the battery and cleaning the terminals can help ensure optimal performance.