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Oil Pressure Sensor Replacement
What is an oil pressure sensor?
The oil pressure sensor is monitors the pressurization of the oil as it travels through the engine, and reports that pressure to the engine's computer.
How does the oil pressure sensor work?
Without the proper pressure, oil can't reach all parts of the engine or move as rapidly as it should, thus wearing it out faster. The oil pressure sensor is able to monitor this pressure and alert the computer when it drops to low. The computer can make changes to protect the engine and alert the driver of the problem.
Symptoms of a failing oil pressure switch can include:
Oil pressure warning light on
Oil pressure light flickering
Oil pressure light doesn't illuminate at all
What are the symptoms related to a bad oil pressure sensor?
When the oil pressure sensor fails, the signal that it sends to the engine's computer will be inaccurate, causing the engine's computer to behave as through the oil pressure is too high or too low.
This may cause the check engine light or oil pressure warning light to illuminate on the instrument cluster. Also, the engine may be placed in limp mode for engine protection.
The average cost for a 2018 Lexus LS500h Oil Pressure Sensor Replacement is between $174 and $226.
Labor costs are estimated between $110 and $161 while parts are typically priced around $65.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.
Can I drive with a oil pressure sensor problem?
A car with low engine oil pressure should not be driven. The engine may start and run normally, but without oil pressure, you can ruin your engine. If your oil pressure warning light is on, you should have the car towed to a repair shop.
How often do oil pressure sensors need to be replaced?
There's no set schedule for replacement, or even a way to predict when the sensor might fail. Most vehicles will never have an issue with the oil pressure sensor, and changing the oil and oil filter on time may help prevent premature failure.
How are oil pressure sensor issues diagnosed?
When diagnosing a possible loss of oil pressure, the technician will check the oil level first, then the engine will be inspected for oil leaks.
If the oil is full, and there are no leaks, the technician will connect a scanner to the vehicle to compare what its sensors are saying to the actual conditions. The technician will test the oil pressure sensor and associated electrical circuit, and determine if the sensor should be replaced.
How is an oil pressure sensor replaced?
If the oil pressure sensor is faulty, it will be removed and replaced. The location of the sensor varies by make and model, but it's usually near the oil filter or in the cylinder head.
Before replacing an oil pressure switch, a professional mechanic will first determine that the oil level and condition are okay, that the oil light electrical circuit is operating normally, and most importantly, that the oil pressure is within the manufacturer's specifications.
The oil pressure sensor may also be referred to as the "oil pressure sender," "oil pressure sending unit," or the "oil pressure switch."
Get a RepairPal Fair Price Estimate® for your 2018 Lexus LS500h.
Our Fair Price Estimate will help you avoid overpaying based on your car, needed service, and labor rates in your area.
