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What might cause a 1995 Geo Metro oil light to stay on?

Updated: 8/16/2019
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16y ago

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Low oil pressure. Now the question is does it really have low oil pressure or is this a false reading. Check the oil level and add as necessary. If it was low that is your problem. If not, You need to check the oil pressure sending unit for loose wires or a leak. If you find it is OK, then you will need to see if you indeed do have low oil pressure. You can have someone run an oil pressure test or you can simply replace the oil pressure sending unit as it may be defective. I would also replace the oil filter and make sure you are using a good quality correct filter. If replacing the sending unit, checking the oil level, and replacing the filter does not correct the problem, you will need to have an oil pressure test run. If you find you have low or no pressure, the oil pump has probably failed.

Low oil pressure. Now the question is does it really have low oil pressure or is this a false reading. Check the oil level and add as necessary. If it was low that is your problem. If not, You need to check the oil pressure sending unit for loose wires or a leak. If you find it is OK, then you will need to see if you indeed do have low oil pressure. You can have someone run an oil pressure test or you can simply replace the oil pressure sending unit as it may be defective. I would also replace the oil filter and make sure you are using a good quality correct filter. If replacing the sending unit, checking the oil level, and replacing the filter does not correct the problem, you will need to have an oil pressure test run. If you find you have low or no pressure, the oil pump has probably failed.

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16y ago
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16y ago

Low oil pressure. Now the question is does it really have low oil pressure or is this a false reading. Check the oil level and add as necessary. If it was low that is your problem. If not, You need to check the oil pressure sending unit for loose wires or a leak. If you find it is OK, then you will need to see if you indeed do have low oil pressure. You can have someone run an oil pressure test or you can simply replace the oil pressure sending unit as it may be defective. I would also replace the oil filter and make sure you are using a good quality correct filter. If replacing the sending unit, checking the oil level, and replacing the filter does not correct the problem, you will need to have an oil pressure test run. If you find you have low or no pressure, the oil pump has probably failed.

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