Question about 2001 Oldsmobile Aurora

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Low oil pressure light goes on until car warms up. Oil level is good

Low oil pressure light goes on and off until the car reaches full operating temperature. The car runs fine. I checked the oil level and it's full. Do you know what causes this?

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  • Anonymous Mar 13, 2014

    My car can low oil pressure

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  • Oldsmobile Master
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The oil pressure sending unit has gone bad. I sending unit is just above the oil filter and you can get to it from the top. When you face the Engine look down towards the oil filter, the oil pressure sending unit is just above that and it looks like a cylinder with two wires coming from it. If you don't see it, it's right between the exhaust manifold and oil filter.
If you go to Auto Zone or Parts Source, they'll have the oil pressure sending unit and the step by step instructions, When installing the new sensor. Do not use teflon tape or any sealant, the sensor is tapered and need's the good ground from the engine to give you right readings.
Good luck and hope this helps.

Posted on May 11, 2009

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If your engine shut down, it may be the result of some of the internal parts seizing. Hopefully, this is not the case. Check the oil level and top off as needed to bring the level up and attempt to start the engine and have the vehicle checked by a trusted mechanic.
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What does the oil pressure light do ?


the oil pressure light operates on a sending unit mounted near/around the top of the engine on an oil galley. when the oil pressure reaches critically low levels (typically between 10-20 psi) the light will come on to indicate the problem. usually this is due to a low oil level. IMPORTANT- do no operate.run your motor with low oil pressure, this can cause irreversible damage to your engine! check your oil level if you are full on oil and the oil is not old (if its really old and gotten too hot a time or two it can become thin and loose viscosity) then you need to check your oil sender first as its the cheapest to replace (oil pumps dont often fail) reply to this solution and i can help walk you through this . hope this helps!

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Okay What it means is that the oil in your car is either low in level or the oil pressure at low revolutions is low. I highly recommend you to stop driving the car when this happen because you can internally damage the engine with a low oil or a low pressure of oil. Check the oil level first..make sure level is fine and oil looks good. Black and burned oil will give you a low oil pressure as well. If it happen that your car need a oil change. Make sure you get it done and see if the problem goes away. Very rarely oils pressure sensor goes bad but if oil is new and level is fine you can take the oil pressure sensor and connect a tester for a oil pressure. If this is not under the manufacturer specifications.. oil pump is worn out and you have to replace it for a new one.
Good luck and don't forget to rte me. Thanks

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IT IS NOT A GOOD IDEA TO DRIVE WITH THE OIL LIGHT ON Unless you know it is an electrical fault and not truly a low oil pressure condition bringing on the light.

CHECK OIL - fill if necesary - light hopefully goes off... STILL ON - have switch tested - switch is hopefully faulty - replace it... STILL ON - have engine checked out - it is losing pressure somewhere
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