Do not operate the engine with faulty components.

All engine failures give some warning before parts fail. Be aware of changes in performance, sounds, and visual evidence that the engine requires service. Some important clues:

• Engine does not run or vibrates excessively
• Sudden loss of power
• Unusual engine noises
• Fuel, oil or coolant leaks
• Sudden change outside the normal operating range at normal engine operating temperature
• Excessive smoke
• Loss of oil pressure