Your vehicle's motor relies on the engine oil to function efficiently. That means that there must be a controlled level of oil pressure. Vehicles feature oil pressure sensors that monitor oil levels and pressure in the engine. Therefore, it is critical to understand what the oil sensor is, how it works, and its signs of failure. Having that knowledge is crucial because you can detect issues early enough for timely repairs.
How an Oil Pressure Sensor Works
As mentioned earlier, the primary function of the oil pressure sensor is to track the pressure of oil in the engine and transmit the resulting data to the oil pressure gauge. The oil pressure system has an electronic control unit that collects data from the sensor and sends it to the gauge. If there is a significantly low oil pressure level, the system will trigger the oil pressure warning light.
Signs and Symptoms of a Bad Oil Pressure Sensor
Like the engine speed sensor or the manifold absolute pressure (MAP) sensor, the oil pressure sensor can also fail. Fortunately, your vehicle will provide red flags indicating a bad sensor. The signs are discussed below.
Oil Pressure Warning Light Flashes
While the low-oil light is primarily designed to indicate decreasing oil levels, it will also flash when the oil pressure sensor has a problem. However, it becomes a challenge for an untrained individual to understand the exact problem with the oil system. Therefore, check your engine-oil levels manually to see if it needs refilling. If the oil level is at the desired margin, then the problem is likely to be the oil pressure sensor.
Constant Oil-Pressure –Gauge Reading
Sometimes the gauge pointer may constantly point at a constant reading or high absolute zero. A potential cause might be the oil sensor, resulting from a short or damaged signal system altogether. The continuous reading can also be caused by an unplugged connection to a damaged wiring harness. That said, don't only check the oil, but have a professional technician inspect the system and change the sensor (if necessary).
Noisy Timing Chain
If your engine relies on an oil-reliant timing chain, it is critical to have proper functioning oil sensors. The chain and its tensioners rely on the oil for lubrication. If the pressure drops, the tensioners loosen, weakening the chain and causing it to be thrown around inside the casings and pulleys. That's what causes the engine noise.
We're your one-stop auto repair shop for everything. If you notice any sign of a failing oil pressure sensor, we invite you to bring your car to us, and our highly qualified technician will inspect the system and provide a long-lasting solution.