OIl light on but oil levels are fine
The oil warning light is for oil pressure, not the oil level in the engine.
Your owner's manual will explain it in detail.
You need to have the oil pressure checked with a mechanical gauge or replace the oil pressure sending unit to see if it is faulty.
SOURCE: 2009 Aveo 5 how do you reset the change oil
Try with key on, press gas pedal to the floor three times then turn key off & back on. This should reset it.
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SOURCE: Oil Light stays on.
it sounds like a faulty sending unit the only way to know for sure is to install a mechanical gauge and measure pressure. or just replace the sender. it is not wise to drive it and just assume it is nothing major. if it is a mechanical problem will cost a lot more if you lock the engine up
SOURCE: Oil Pressure gauge on 2006 Chevy runs at 80 then drops to 0
whats the gauge do when the truck is running
SOURCE: OIL PRESSUE LOW
At some point, your engine is registering low oil pressure and warning you the oil pressure is insufficient to lubricate the engine properly.
How does the engine know this? What causes it? Excellent questions. The engine 'knows' this because there is one or more sensors that read the oil pressure all the time. The sensors report to the computer which reports to you. They could be faulty. On the other hand, there could be times when oil pressure IS low. Your oil pump may be mal-functioning. Normally, I would expect the oil pump to either do its job properly or NOT do it properly but not act intermittently. It may warrant being checked by a professional. Another reason for this condition could be the oil itself, though you report you just had it changed. Presumably, whom ever did the change put in the proper oil grade, service and weight, recommended by GM.
Another thought, is this warning seen by you immediately after you start the car? If yes, it is normal for oil to take a second or two to build the proper pressure, particularly in cold weather. Where I am at, it is cold. Oil doesn't like to move when it is cold (like me) so it takes a bit of time to get up pressure (like me).
If this continues, you may want to have this problem looked at by a professional, as I said.
Thanks for your interest in FixYa.com
SOURCE: I have a 1995 Chevy Lumina with the ''Low Oil'' light on.
may be the oil sending unit is bad
may be the oil pump
is there any noise in the engine?
have the oil pressure check at a repair shop to make sure you have enough oil pressure
if it's ok then have the shop replace the switch while they have the old one out to check the pressure
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