What would be the symptoms of weak injectors in a 1997 Ford 7.3 diesel?

Symptoms of weak injectors in a 1997 Ford 7.3 diesel may include rough idling, decreased engine power, poor fuel economy, and increased exhaust smoke, particularly white or black smoke. Additionally, you might experience hard starting or misfires, especially when the engine is cold. If the injectors are significantly faulty, you could also notice a rattling noise from the engine as it struggles to maintain proper fuel delivery.