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Oil pressure light has almost nothing to do with with the amount of oil in the crankcase. Oil pressure is affected by just a couple things, does the oil pump work, is the pickup screen blocked, have the main and/or rod bearings worn out and does the pressure bypass still work? Rod and main bearings are quite simple, they consist of a hardened crankshaft with carefully turned and polished contact surfaces and rod and main bearings which fit tightly to the crankshaft with no more than two thousandths of an inch clearance when the bearings are new. The contact surface of the bearing is made of a very soft metal called "babbit". Oil pressur keeps the babbit bearing surface from actually coming in contact with the crankshaft surface. If the babbit has worn and the bearing surface has worn to the point that the clearance has significantly increased, the oil will leak past the bearings and the pump will not be able to pump enough oil volume to keep the pressure up. In short, low oil pressure is one of the main indicators that an engine is worn out.
What else can I help you with?
How do you solve oil sensor problem if it is not coming on when you are driving?
If the engine oil level is at the full mark, the light is not suppose to come on when driving.
What does it mean if the oil light comes on and the oil is full in a vauxhall frontera?
If the oil light only comes on when the engine is hot and on idle look at your oil pressure gauge to see if the needle is going down to the low end of the scale if so give it a service and make sure you use 10w 40oil reccomended for frontera and you can put in slick50 or other engine oil additive this will increase your oil pressure and stop the light coming on
What does it mean when your oil light keeps coming on periodically in your 2001 300m?
Can be the level is low or the sensor is going back.
Why is the oil light coming on in my 1999 Chevy Cavalier when I stop at a redlight and the engine is warm the oil is full?
Low oil pressure. Bearing clearences are most likely to large. New or rebuilt engine time!
What does the Chevy 6500 diesel oilwrench dahboard warning light mean if the oil is full and pressure seems ok?
The warning light can come on when it is time to change the oil. Your oil pressure and oil level can be at recommended levels when the oil needs to be changed.
Why does the change oil light come on in your 2001 grand am se when the oil is full?
If it it a change oil light it is telling you it is time to change the oil. There should be another light that is the oil pressure light.
Why does the oil light come on after coming to a stop in a downhill position and then the check engine light comes on and the oil light goes off?
Low oil or a faulty oil level senser
What does the can with a drip coming from it mean on the indicator lights on a 02 Mercedes ml320?
The can with a drip is the oil indicator. If the light comes on, check the oil level (well, you should check the oil at least once a week).
Why does the oil light keeps coming on?
Low oil pressure of a faulty oil pressure sending unit.
What is the full form of LDO?
light diesel oil
What does it mean when Maintenance light flashes 6 times after starting 2006 Toyota highlander?
The time for your next oil change is coming very near.
Oil is disappearing with no leaks and oil light keeps coming on car is a 1997 geo metro?
If the car does not smoke badly this may mean you are using the wrong weight motor oil. Use the proper weight oil that a dealer will recommend.
