1994 chevy corsica low oil level stays on

SOURCE: Low Oil pressure light in idle at stop

Depending on the amount of miles, maintenance records, or how hard the car has been driven either by a previous owner, or by yourself. The engine's main crankshaft bearings or the connecting-rod bearings could be excessively worn.

Also, it could very well be a wiring problem to the sensor and/or computer causing the problem.

SOURCE: i have low oil pressure in my 1994 chevrolet suburban

how low is dangerous low? are you going by factory gauge? need to run it with a mechanical gauge to see exactly what it is doing. if it is too low your only option is to replace oil pump and main bearings. these would be your wear items most likely causing low pressure.

Harvey N Tawatao

• 3854 Answers
• Posted on May 24, 2009

SOURCE: locate the a/c low pressure switch in my 1994chevy truck

You can jump the A/C clutch fan right on the compressor, be careful though. Lack of oil in the system will cost you a new A/C compressor.
Cheaper if you go to Auto Zone and by the recharge kit for your truck, I think it's like under $45.00 for the R134 canister with stop leak and the hose fitting. 
Good luck and hope this helps. Here is a link for re charging A/C http://www.cyberbright.com/autobin/air_conditioning.htm

SOURCE: need a 1990 diagram of a chevy corsica engine

on the fuel rail on top of motor

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.

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