Question about Cars & Trucks
What cause my oil light to stay on when it has oil and what cause a tapping soung
You could have a bad oil pump. Even though the engine has oil, if the pump is bad, oil pressure will be low, hence the oil light. The tapping could be hydraulic lifters not working correctly because of low oil pressure, or the failed oil pump. See a mechanic ASAP. At a bare minimum, he can run a computer code scan to see if there is something detected by the onboard computer.
Posted on Dec 04, 2014
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Posted on Jan 02, 2017
If your sure ALL of your bulbs are good(front and rear)then your bulb check relay is bad its usually in the trunk area,hope it helps have a good dayDB
Posted on Feb 17, 2009
Hi, this will happen when the oil sending unit(module) is malfunctioning. This a sensor that reads the information and sends the alerts which initiates the lights actions. Replacing this sending unit(module) will fix this issue. There is a more sever issue that may not be the case but, there is a chance. The oil pump itself may be malfunctioning. this could also trigger this alert as well. I suspect the sending unit may be malfunctioning.
please rate and have a great day...
Posted on Mar 18, 2009
It occurred to me that you may find it by unplugging wires on the few items under the hood which may appear they could be the oil pressure sending unit.
The light should go out when the wire is unplugged, and if it does it is bad. That's your continuity test.
If you unplug the oil pressure sending unit and the light does not go out, the cause of the oil light staying on is something other than the oil pressure sending unit.
RE pete cass posting: I believe that if the sensor is diconnnected, the oil pressure light will not light (at least because of the oil pressure sensor switch being disconnected) -- the symptom here is the light won't go off. The switch is closed with oil pressure below 10-15 PSI and open above that oil pressure -- this is a normally closed switch.
Posted on May 12, 2009
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