Once more, it is important to rule out actual low oil pressure by checking the dipstick and listening to your engine. Damage to the wiring harness, a corroded plug, or simply an unplugged connection could be the culprit. It could be an internal short in the sensor giving a constant high reading, or the signal pathway may have been destroyed altogether, giving you a zero reading.
If you get a constant gauge reading of either very high of absolute zero, this could indicate a bad sensor. Always confirm that your oil level is adequate, and there are no strange noises before moving on. However, not all check engine lights have something to do with oil pressure, so either way, get it checked out. Note that some older cars might not have a dedicated oil pressure light, and this problem might pop up as a check engine light in those cases. Thus, a sporadically blinking oil light is probably the clearest sign that the sensor itself is on its way out. And it almost certainly isn’t a condition that changes rapidly back and forth. If you have a problem with the actual oil pressure in your car, chances are it isn’t intermittent. In this case, definitely stop driving until you’ve resolved the issue or you could be facing major and immediate engine damage. If you find that the level is low, this could mean a lack of pressure from a leaking hose or gasket, or possibly that the oil is being burned in the combustion chamber, and that you simply don’t have enough oil. If you find that the level is good, but you hear loud grinding or ticking noises coming from the engine, this could mean that your oil pump isn’t working, and you should not start the engine back up until it’s fixed. If the dipstick reads that the oil level is fine and the engine sounds like it’s running quietly and smoothly, then the light is probably just the result of a bad sensor. If your oil pressure warning light comes on, pay attention to it! Any time this light comes on, even if you know your sensor is bad already, you need to check it out. Considering the important part they play in keeping your engine intact, how can you tell if an oil pressure sensor is failing? Remember, your local NAPA AutoCare has the right tools to test your engine oil pressure so you can be certain if there is more than just a sensor issue.
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This gives the driver time to pull over and assess the problem before costly repairs become necessary. The oil pressure sensor assumes the role of monitoring this internal pressure and sending a signal to the oil pressure gauge on your dash, alerting you immediately if there is a problem. Rapidly moving metal surfaces produce lots of heat and friction and require constant lubrication to prevent damage to individual parts and the engine as a whole. Maintaining proper oil pressure is vital to keeping an engine running.
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