Question about 2001 Volvo S40

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Why does the oil light stay on?

Why does a oil light come on and stays on and the oil level is normal???

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Weak oil pump blocked oil filter or oil ways try using flushing oil and then change the filter

Posted on Feb 10, 2015

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Posted on Jan 02, 2017

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Where "exactly" is the oil sending unit?


the oil sender unit is screwed into the main oil galley of the engine block ans is in fact either a variable resistor for oil gauges or a pressure switch for oil lights
It normally has one wire from the gauge or light and is grounded out through the body of the unit
if the oil light stays on it indicates either a faulty sender unit or the wire is grounding out before the sender unit
do not confuse this unit with an oil sensor unit which has more wires and communicates with the ECM to report temperature and oil levels and pressures ( depending on the make of vehicle ) that will put on the MIL light or place the engine into limp mode

Jun 26, 2016 | Cars & Trucks

1 Answer

Check oil light stays on


Your vehicle may have an "oil level" sensor built into the oil pan. If so, and the sensor is bad, the dash will constantly tell you that the engine needs more oil even if it does not. Checking the oil with the dipstick, a minute after the engine has been turned off on level ground is always the best way to check your oil. Try scanning the vehicles computer systems to see if there are any fault codes. The warning light may also be on a timer that just needs to be reset. The "Check Oil" light should be separate from the engine oil pressure warning light. As long as the engine oil pressure light stays off, you should be ok. Checking the oil pressure with a manual gauge would be a good idea as well.

Apr 23, 2014 | 1999 Toyota Corolla

1 Answer

Why is oil light staying on,even after resetting? The oil level is ok. 2004 buick lesabre


If oil level is ok and seems to run normally there may be an issue with the oil level sensor located in the oil pan.

Jul 16, 2010 | 2004 Buick LeSabre

1 Answer

LEXUS es300 oil light stays on oil level full


Check oil level sensor, replace if necessary. also, does your engine knock or make a tapping sound?

Mar 28, 2010 | 1994 Lexus Es 300

2 Answers

Oil level low light comes on. When I turn


some cars with oil level warning light on, it doesn't mean that its only reading the engine oil level is low, sometime the transmission fuid too. Did you check your transmission fluid if it is ok or not? try to check and let us know, ok.

Mar 14, 2010 | 1999 Buick Century

2 Answers

Oil light is staying on when i turn the car on. This is not the service indicator oil change light, but theother one. It's not staying on the whole time the car is on, but when I turn the car on, it's...


This could be a possible oil filter issue(clog), or a failing oil pump as well.The first check point will be to inspect the oil level. pull the dip stick to check for proper level. if the level is sufficient, i would move on to the sending unit. Inspect the oil pressure sending unit for faults or loose connections. if the sending unit is ok, and connected properly, i would advise to take the vehicle to a near by mechanic or service depot for a look at the oil pump and filter.

NOTE-

(((Most common issue will be a faulty oil pressure sending unit)))

Sep 25, 2009 | 2005 Scion xB

1 Answer

Where is the oil level sensor located? oil guage wiggles between 40 & 60 at idle and stays on 60 on the road.


That's not oil level you see on the gauge -- that is oil pressure in pounds per square inch (PSI). It is normal for the pressure to fluctuate when the engine RPM goes down. If it stays on 60 PSI on the road, you are very lucky -- that is excellent oil pressure!

May 28, 2009 | 1999 GMC Sierra

1 Answer

Low oil warning light staying on oil level ok


would be best to have oil pressure checked with a mechanical gauge to be sure you have oil pressure.
hopefully you just have a bad oil pressure switch this is located on oil filter adapter rt above filter

Aug 19, 2008 | 1996 Nissan Quest

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