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Oil light but no low oil - 1994 Toyota Pickup

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Your oil pump may be going out........

Posted on May 19, 2011

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Posted on Jan 02, 2017

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I have a 2015 volkswagon passat. And the low oil light keeps coming on and I checked the oil yesterday and the light went off and came back on today. But it's not the oil pressure light. ?


Keith, it probably is the oil pressure light.

Low oil level causes low oil pressure. But, as you say .. your oil level is okay. It may be the oil pressure sender which is at fault. There's every possibility that your oil pressure is fine, but the sender is sending a false signal to your dashboard which gives the 'low oil level' warning light.

Get the mechanic at your local dealership to stick his head under the hood. You'll get a diagnosis in seconds. I don't think you have too much to worry about .. just that 'low oil level' warning light is a bit unsettling ..

Jan 24, 2017 | Cars & Trucks

1 Answer

Why would the oil light stay on?


That depends on the type of oil warning light being displayed. There are 2 types of warning lights

1. Low oil pressure light which all cars have
2. low oil level light which some cars have.

Low OIL PRESSURE warning means the oil pressure is below minimum and when this happens there will be insufficient lubrication of many engine parts because sufficient oil cannot get to all parts of the engine it is required to lubricate. Until the cause is identified and rectified the warning light will remain. If you run your engine with low oil pressure you will cause expensive damage to internal engine components.

Low OIL LEVEL warning means the oil in the sump has dropped to a dangerously low level (which may be due to an oil leak or abnormal oil consumption by the engine.) This warning means the oil level needs to be topped up and the warning will stay displayed until you top up the oil. Running the engine with low oil will cause expensive engine damage.
Since it is a 2 minute job, Oil levels should be checked fortnightly as a minimum, together with radiator coolant and power steering fluid levels, if you run the car most days each week as most people do.

It is possible for a warning light to remain displayed when the cause has been dealt with because there is a problem with the sender unit. However it needs to be established with alternative checks that the problem has been fixed before investigating if there is a problem with the warning light itself.

Nov 21, 2015 | Cars & Trucks

2 Answers

High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

1 Answer

Oil light on when I start, I shut off and light stays off


The oil light is supposed to come on when there is low oil pressure, so when the car starts, the pressure goes from 0 to whatever (25-60psi depending on the engine). As a result, the light stays on for a few seconds at the beginning of the start cycle and is then supposed to go out. If the low oil pressure light remains on, then you either have low oil pressure or you have a sensor problem. If you have low oil pressure, you may need a new oil filter. If the filter was just replaced, then you need to get professional help because low oil pressure will wreck your engine in a hurry. Your engine's oil pump may be faulty and need to be replaced.

Aug 19, 2013 | 2004 Chrysler Pacifica

1 Answer

Low engine oil light on after fresh oil change


I am going to assume you have checked the oil level to make sure the engine has enough oil.
If it really is a warning light for low oil it could be that the shop knocked the wire off the sensor.
If it is the warning light for low oil pressure, it could be the sensor or you could really have low oil pressure and still have plenty of oil.

Apr 12, 2013 | 2000 Oldsmobile Silhouette

1 Answer

Why my oil light doesn't come on when my oil is low?


Your oil light is probably pressure sensing and not level sensing. Of course when your oil level is low your pressure should also be low, I'd check the oil pressure sensor.

Jan 17, 2012 | Cars & Trucks

3 Answers

What causes the oil light to come on?


The oil light will come on orange if your oil level is low. The oil light will come on red if your oil pressure is low. The oil light will come on, then turn off if your oil level sensor needs replacing. Alex

Aug 04, 2011 | 2001 Chevrolet Cavalier

2 Answers

Why is oil light blinking?


Oil light blinking usually indicated low oil pressure / viscosity. Probably either low on oil, incorrect oil weight, poor quality oil, or needs oil changed..........Mike

Jun 19, 2011 | 2002 Mercury Sable

1 Answer

Low oil pressure light comes on and i changed the sensor


does the oil pressure gauge show low oil pressure?is it low oil pressure light? or low oil light? 2 sensors on this vehicle.make sure you get a chevrolet oil sensor,aftermarket sensor do not do well,make sure your using 5w30 or 10w30 wieght oil,if you are putting out over 20 lbs at idle in gear,i see no problem,should go up to 40 or better on accel,if it is low oil pressure and the gauge conferms,possible engine wear

Dec 07, 2009 | 2001 Chevrolet Monte Carlo

1 Answer

Oil light stays on and coolant light


sounds like low oil pressure check oil pump, try thicker oil just to see

Jan 06, 2009 | 1996 Oldsmobile Cutlass Supreme Coupe

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