How do you know if you need to replace the whole distributor on 97 Mitsubishi Diamante as opposed to just the distributor cap and rotor?

To determine if you need to replace the whole distributor on a 1997 Mitsubishi Diamante, check for signs of internal damage such as excessive wear, corrosion, or cracks in the distributor body, which can affect performance. If the engine is misfiring, stalling, or not starting, and replacing the cap and rotor doesn't resolve these issues, it may indicate a problem with the distributor itself. Additionally, if you notice abnormal play in the shaft or issues with the ignition timing, replacing the entire distributor might be necessary. Always consult a professional mechanic for a thorough diagnosis.