Oil light came on

My car is a 1999 toyota Corolla, it has 200,1650 miles on it. Oil light just came and is reading no codes there is plenty of oil in the car. I was driving when the oil light came on it them began to want to stall on me. This happened 2 times. I took it to a shop and the guys said it could be the oil pump. I am not sure what is going on. I need some answers before I take it to Toyota where it might cost me $1,000.00 to have fixed.

My car has 200,000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
The oil pressure light will usually come on when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit is not working properly and may be producing a faulty reading. If the engine is in fact low on oil, you may notice the temperature gauge reading above normal temperatures as a result of the lack of sufficient oil in the motor. I would recommend checking the actual oil level in the motor by using the dipstick. Be sure the oil level reaches the "full" mark. If this registers as "full" then you likely have a faulty oil pressure sending unit. Many vehicles also have a safety feature built into the vehicle’s computer system which will shut the engine down completely or trigger a “safe mode” of some kind which will drastically limit the vehicle’s engine power to avoid further engine damage until the oil pressure problem is corrected. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle to determine what may be causing your low oil pressure light to come on.

How to Identify and Fix Common car Problems ?

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Low oil pressure means internal components of the engine are not being fully lubricated. Unlubricated engine parts can get damaged and eventually cause total failure. If the engine has the right oil levels, then the oil warning light could be anything from a sensor, the oil pump, or even just low oil pressure alone.
Generally speaking, you have about 2 weeks or 500 miles of driving before a flashing oil light turns into a legitimate problem. But once it hits that point, things can go downhill fast, leading to serious mechanical damage. So, try to get your vehicle into a mechanic sooner rather than later.
There is two reasons, possible more. 1)-The engine may be slightly low on oil, but not enough to trigger the sensor. 2)-The light/sensor could be faulty.
If your oil light comes on while you`re driving, you need to stop right away and shut the engine off. If you`ve run out of oil, your engine may seize up and refuse to turn over. If the car abruptly stops while you`re driving, you might be in trouble.
This light is turned on automatically every 5,000 miles as a warning sign, so you don`t forget to change the oil in your car.
An amber engine oil level light means you should stop the car as soon as it`s safe.
Low pressure means there either isn`t enough oil in the system or the oil pump isn`t circulating enough oil to keep the critical bearing and friction surfaces lubricated. If the light comes on while at speed, do your best to pull off the road quickly, turn the engine off, and investigate the problem to avoid damage.
When your engine oil is running low, it stops lubricating the engine components. When these parts are no longer well-oiled, they cause loud clunking, knocking, and grinding sounds. This can cause your rods to break, which will give off the knocking sound from underneath the hood of your vehicle.
If this light stays on, it will mean your vehicle needs oil or filter change. A car manufactured with an in-cabin messaging system will show the oil life of 10 percent to 100 percent at the center of the dash and takes about five seconds before it goes off.
If the oil light flickers on and off while the vehicle is stopped or at an idle, there may be a problem with the oil sensor or the pressure is too low. At the very least, the engine should have 5 PSI when not moving. If the PSI is less than 5, this will trigger the oil light and cause it to flicker off and on.
Driving isn`t recommended when you have a bad oil pressure sensor. You shouldn`t take it lightly, even if you`re confident it`s just an oil pressure sensor problem. Maintaining the correct oil pressure in your engine is critical to keep it functioning. A bad oil pressure sensor can give the wrong oil pressure readings.
Toyota recommends that you have your oil changed every 10,000 miles, but to continue with the 5,000-mile service intervals for fluid top offs, inspections, and tire rotations. Schedule a service appointment to get started or continue reading to learn more!
The oil detection sensor works by measuring the level of light. An LED inside the device shines light onto a photoelectric cell. When oil touches the sensing probe it deflects some of the light, activating the unit.
A faulty oil pressure sensor or oil pressure switch can falsely signal a low oil pressure condition, causing the oil pressure warning light to turn on.
An oil pressure sensor is a device used to measure the oil pressure on an engine. Oil pressure sensor is actually a term that covers at least two different and distinct types of sensor – an oil pressure switch and and oil pressure sender.
Over time, oil itself breaks down and needs replacing in order to effectively fulfill its role. If you ignore an oil change too long, your vehicle`s engine can seize up or experience some other serious problem. Should this happen, you may need to rebuild the engine, replace the engine, or buy a new car.
In reality, low oil pressure is a signal that there`s something wrong in the engine. It could be as simple as low oil level (which can be corrected by adding more oil or changing the oil).
The practice of topping off your oil is essentially just like it sounds — you`re adding fresh oil on top of existing oil. However, the trouble with mixing new and old oil is the new oil can become contaminated in the process or allow impurities to continue building in your engine.
Most oil experts say it`s better to drain the oil when it`s hot instead of when it`s cold, for several reasons: Oil viscosity is thinner when it`s hot, so it drains more quickly and completely out of the engine than when it`s cold.
The oil light does NOT measure how much oil there is in the engine…the idea that it measures the amount of oil is a very common misconception.
No. Driving with low oil pressure or low oil in the system can ruin the vehicle`s engine, completely breaking the motor. If you notice the oil light on while you are driving or while the car is running, you should stop driving and have this problem addressed as soon as possible.
The short answer is yes. Engine oil is crucial in maintaining optimal performance by lubricating and cooling engine components. Neglecting regular oil changes can lead to increased friction, reduced efficiency, and potential engine damage, ultimately impacting acceleration.
When you have low oil volume or low oil pressure, you`ll commonly hear a “clattering noise” coming from the engine`s valves. This can come not only from not enough oil, but from the oil getting too old and starting to break down or foam.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Hello Ben, my oil pressure is came on. Slight oil drip. Mechanic changed oil, replaced sending unit. Light came on after a day.
ANSWER : You need to have the oil pressure checked to see if the oil pressure is within specifications before you condemn the engine internal problem with oil pump or crankshaft and bearings. You may want to get the dealer involved now and let them take care of getting the light diagnosed.

Read Full Q/A … : Oil light came on

Low oil pressure light comes on when idle. Check engine light is on as well. Both came on after getting an oil change 3 days ago.
ANSWER : It is possible that they put in the wrong viscosity oil. In rare instances, a defective filter will also cause low pressure. If there is too much oil, it will aerate and cause low pressure. Be sure the oil level is really not above "max". The P2187 code will appear if the oil fill cap is not tight but it will also appear due to a myriad of causes because that code only "generally" identifies a lean running condition. Consequently, numerous parts would have to be tested including the O2 sensor, gas cap seal, manifold air leaks, any vacuum leak anywhere including PCV and EVAP systems, exhaust leaks, and fuel system faults such as failing fuel pump, clogged filter and more. Since the car has relatively low mileage, you would not expect a failed oil pump, although the pressure sensor (or switch) could be bad. However, the occurrence of the oil pressure warning light is quite coincidental to the oil change, thus I would suggest bringing the car back and asking them to redo with a new filter and double check the viscosity of the new oil that they use. If the problem persists after that, you will have to test actual operating oil pressure (at idle for instance) as well as the oil pressure switch. Finally, if the oil pressure warning light comes on continuously, unless the warning circuit itself is malfunctioning, that means the oil pressure is too low to operate the engine without damaging it. Anytime the light comes on for more than literally an instant, you should shut down the car and thus an issue like this obviously has to be repaired.

If you’d like, a YourMechanic certified mechanic can come to your home or place of business to inspect the vehicle and perform an oil pressure light is on inspection to diagnose the vehicle and suggest potential repairs.

Read Full Q/A … : Oil light came on

Check engine light and oil light comes on before oil change?
ANSWER : Hi There,
As you may know, these lights are designed to come on at specific mileage intervals that are preset by the factory. When your mileage exceeds a certain amount relative to the last oil change, this will trigger the lights to come on. Typically this will include the oil light and the check engine light as there are also other basic service items that are checked during oil changes. I would recommend obtaining an owner’s manual for your car if you do not already have one. This will usually indicate the specific service intervals and recommended maintenance items for your vehicle at the various mileage intervals.

The tire pressure monitor will also come on when the air pressure in the tires has reached a specific threshold relative to the tire design specification. Tire pressure is also impacted by the outside air temperature. For every 10° drop in air temperature outside your tires will lose about 1% in PSI or inflation. As you may know, as the temperature of the air changes the density of the air changes as well causing the tire pressure to be impacted by this. When this happens, the sensors in the wheels will detect this change in tire pressure and cause the tire pressure light to come on. Aside from replacing faulty tire pressure sensors, another way to help prevent this type of fluctuation in tire pressure is by the use of Nitrogen in your tires rather than regular air. As you may know, air is approximately 78% Nitrogen, 21% Oxygen and the rest is water vapor and some other small concentrations of gases. Nitrogen is much less likely to migrate through tire rubber than oxygen. This will maintain your tire pressure much more consistently during large temperature fluctuations.

Read Full Q/A … : Oil light came on

I Had my oil changed on 5/28/16. On 5/31/16 the check engine light came on. On 6/5/16 the low oil pressure turn off engine came on
ANSWER : Hello,

From what you describe it would not appear to me that something went wrong during your oil change.

If the level is correct on the dipstick and the engine runs and sounds okay, then it is probably something else.

A likely cause for a problem such as this can be a defective oil pressure sensor, or wiring.

Virtually all vehicles have a dedicated oil sensor that will monitor oil pressure of the engine and set off a warning light if it falls to low, in order to protect the engine. If the sensor fails however, it can send a false reading to the computer or gauge, and cause the warning light to activate by mistake.

I would recommend having the vehicle’s oil pressure sensor tested for accuracy, and if necessary the engine’s oil pressure to make sure that there is no issue with the oil pump or system of the engine, as unlikely as that may be.

I’d recommend having a certified mechanic inspect the vehicle for you, they will be able to check for these failures and diagnose your Check Engine Light in order to get your car running normally again.

Regards,

Eduardo
YourMechanic

Read Full Q/A … : Oil light came on

Oil light came on and the oil is full.
ANSWER : Hi there. Either the oil pump in the engine has failed and is pushing oil at a lower pressure than the sending unit could register or the sending unit failed. If you need further assistance with your warning lights, then seek out a professional, such as one from Your Mechanic, to help you.

Read Full Q/A … : Oil light came on

My steering wheel locked up or got stiff and the battery light came on and oil light came on but battery is fine and oil is there
ANSWER : Depending on whether your truck came with electric power steering or hydraulic power steering, this could have been caused by failing power steering whether it be hydraulic or electric. To provide steering assistance in an electronic power steering system, an electric motor mounted to the side of the rack housing drives a ball-screw mechanism via a toothed rubber belt. The screw engages a spiral cut in the outside of the steering rack. A torque sensor attached to the pinion shaft signals a control computer when to provide assistance. There are a number of things that can fail with the electronics involved in this kind of a system.

In a hydraulic power steering system, the power steering system is driven by a belt on a pulley that is driven by the motor. Your car has a power steering pressure switch that sends a signal to the engine computer when the steering wheel is turned. In response, the engine computer commands the fuel injectors to introduce a little more fuel into the motor to help to compensate for the additional load that the power steering pump places on the motor. If something in this circuit is not working properly, the engine will not be compensated with more fuel as needed when the extra load on the engine is applied, and the engine will stumble, or stall. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

Read Full Q/A … : Oil light came on

lost all oil pressure, replaced the oil pump, low oil sensor, oil pressure sensor, oil pan gasket,
ANSWER : The fuel pump will not stay on if you loose oil pressure. This is why it is shutting off. The loss of oil pressure may be from bad crankshaft bearings or camshaft bearings. The engine oil pan should be removed and the oil pump needs to be checked to ensure that you put in the pick up tube seal to the pump and connected the pump to the block. Then remove at least one main bearing cap and inspect the bearings for excessive wear and crankshaft damage. If you need some help with this, consider YourMechanic, as a certified technician can help diagnose the issue with your oil pressure firsthand and help you fix it accordingly.

Read Full Q/A … : Oil light came on

Oil consumption. Burning oil. Oil light turns up on idle.
ANSWER : Hi there, thanks for writing in. The valve stem seals are the most common cause of this on your engine. When they fail, it requires that the cylinder heads be removed and rebuilt to fix it. The piston rings can also cause this but they are not as common. Unfortunately there is not anything, not even heavier oil that will fix this. You will need to have the heads rebuilt.

Read Full Q/A … : Oil light came on