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Why does the oil pressure light come on when the engine idles but turn off the instant you hit the gas?


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2007-11-25 14:24:29
2007-11-25 14:24:29

oil pressure is created by the oil pump, which is driven mechanically as the engine turns, and the faster it revs the harder it pumps. It should deliver enough pressure at idle for the light to stay off. Your problem is either a worn oil pump or your oil is too thin and needs changing. If you have an old engine, put in a heavier oil. Penrite 50 is good. Hi another possibility is your idle is set too low Also, you could have a bad or weak pressure release valve in your oil pump. (AKA bypass valve). In addition, if the oil has not been changed in a long time the oil filter may be filled with sludge reducing the pressure. Changing the oil and filter first to heavier oil is a good first step.

Your engine bearings may be worn and letting too much oil escape, resulting in low pressure when the oil pump is running slower (when the engine is running at idle). Revving the engine too high can cause damage to the rod bearings and allow oil to escape too easily. If your engine has a lot of miles on it, or if it has been run without changing the oil regularly, your engine will have a lot of wear. The oil pump, main bearings, rod bearings, and camshaft bearings may all have a lot of wear on them allowing the oil to easily escape without allowing pressure to build up. Rebuilding your engine may be needed. But try changing the oil pump first.


Related Questions

Low oil pressure. Check amount of oil. Think about using a thicker oil in the future. Check for a leaking oil pressure sensor.

There is no such thing as an oil pressure light on most cars. Some cars have oil pressure gauges, and all have a "Engine" light or "Check Engine" light with a picutre of either an oil can, or Engine Block The oil pressure warning light usually looks like a little red oil can. The check engine light looks like a little yellow engine.

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.

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an oil light is designed to come on when there is NO oil pressure or LITTLE oil pressure. that said, when your oil light is on before you start your engine there is NO oil pressure to turn it off until you start the engine.

To much oil in an engine can cause it to flood which will then lead to blowing seals. But it should not effect how the car idles.

Oil level or pressure will not trip a check engine light.

If you are referring to the oil light then you do not reset it. The oil light comes on when it detects low oil pressure. The light will go out when the problem is corrected. Can be the engine is low of oil, does not have sufficient pressure, or the oil pressure sending unit it bad.

Tire pressure will not cause a check engine light.

Never seen a check engine oil light. There is a low oil pressure light which means you have low oil pressure which could be low oil level among other things.

Engine coolant temp sensor. I would check codes if you have a ECT code replace the sensor. does the check engine light come on with key on engine off, If it doesn't replace bulb. If the engine light works check fuel preasure,

The light comes on when the car stalls because the engine is not running and the pump therefore is not pumping. The pressure will always be 0 when the engine stalls and the light is directly related to pressure. This is normal, you have no problem, other than the engine stalling.

The light is NOT a low oil light. It is a low OIL PRESSURE light. You can drive it until the engine seizes. Of course internal engine damage will start to occur as soon as the light comes on and you have no oil pressure if you continue to drive the vehicle.

oil pressure switch oil pressure low worn engine did you drive with no oil in for a long time are there any noises in the engine

After starting the engine, the oil pressure rises. The switch changes from either open or closed at a predetermined oil pressure, switching off the warning light. If oil pressure drops during operation, this light should come on, warning you of this dangerous situation for the engine (and your wallet).

If the oil light is working and is off with engine running, then you have oil pressure. To determine how much pressure, you need a pressure Gage.

DO NOT RUN this engine until you have it checked out,if you have no oil pressure you will destroy your engine.If your oil light is on you have no oil pressure,could be your oil pump or crankshaft bearings.There is a chance it could be a pressure switch malfunction.

The 2002 Chrysler Sebring six-cylinder engine oil pressure light alerts the automobile operator when the oil pressure is too low. The oil pressure light will illuminate red.

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.

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