What is SPN 97 & How to Solve It?

What is SPN 97:

SPN 97 relates to the Engine Oil Pressure Sensor. This sensor monitors the oil pressure within the engine to ensure there’s enough lubrication for critical components. When this code appears, it typically means the engine oil pressure is too low or the sensor is providing an invalid or erratic signal. If not addressed, it can lead to serious engine damage due to insufficient lubrication.

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Why This Happens

• Low engine oil level.
  
• Faulty or failing oil pressure sensor.
  
• Clogged oil filter or oil passages.
  
• Worn-out oil pump or internal engine wear.
  
• Damaged wiring or loose sensor connection.
  
  

How to Fix It

1. Check the engine oil level and top up if necessary.
   
2. Inspect the oil pressure sensor and connector for damage.
   
3. Replace the oil filter if clogged or old.
   
4. Test oil pressure with a manual gauge to confirm actual pressure.
   
5. Replace the sensor or repair wiring as needed.
   
   

How to Avoid It Before It Happens

• Check and maintain proper oil levels regularly.
  
• Use the correct oil grade recommended by the manufacturer.
  
• Replace oil and filters at scheduled intervals.
  
• Monitor for oil leaks or pressure warning lights.
  
• Inspect sensor wiring during routine maintenance.
• Use Clue’s Preventive Maintenance to schedule regular oil checks and sensor inspections, ensuring proper oil levels and avoiding engine damage.