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Back in the old days, cars used an oil pressure gauge - and then along came what are sometimes referred to as "idiot lights" that took their place.

The very same function is being performed: letting the driver know if the oil pressure, therefore the oil levels are getting low.

The flickering light lets you know the oil level is right at the point of being able to trigger the light on the dash.

Also, when the engine is just idling, the pressure is lower and light goes on. When the car is moving though, the engine is turning over faster and the pressure builds up and the light goes off.

The #1 cause of engine failure is engine oil neglect - running oil too long between changes (if any at all!), and running with not enough oil.

The Owners Manual will have all the details and even illustrations on how to take care of your car's oil.
Low oil level. Add oil. Oil pump defective, oil sending unit defective, low oil, bad guage.
1. Defective switch 2. Short in wiring 3. Worn oil pump 4. Worn bearings Hook a direct reading guage to the place where the switch screws in to see what the actual pressure is. If the pressure is good, look for electrical trouble.

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15y ago

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