Question about 2003 Toyota Sequoia

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The oil pressure on my sequoia keeps bottomming out, has plenty of oil, what would cause this

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Your problem is not on how much oil you have, but the Oil Pressure in the engine. Pressure is measured near the oil pump, and that is how the oil gets circulated around your engine, and how everything gets lubricated. The light is telling you that your pressure is low (or it thinks it is.)
The first thing to do is have your oil pressure checked by a mechanic or shop. If the pressure is good, you could just have a bad Oil Pressure sending unit, If the Oil pressure is not good, you could have a bad Oil purmp, or other more serious engine problems, so it is best to get it checked out as soon as possible.

Posted on Aug 30, 2010


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The oil pressure sending unit is a sensor with an internal diaphragm, if the internal diaphragm is damaged , or the line to the diaphragm is blocked you can get this kind of fluctuation on the oil pressure gauge.

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