Question about Toyota Cars & Trucks
Oil change one week ago. oil pressure reading zero and check oil light on. Oil level on dipstick full. No leak.
Check the oil pressure first, it should read around 10 to 14 psi. If pressure is inside the range then your pressure sensor is bad. If lower or reads 0 psi your got a engine problem, further diagnosis needed. Good luck.
Posted on Dec 28, 2013
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Posted on Jan 02, 2017
2.2l cavalier engines have an oil level sensor on the front side of the pan just below the starter. make sure it plugged in before checking anything else. if you're going to change a sensor because of "low oil' light, that would be the one.
Posted on Mar 16, 2009
the light is probably sending an OIL Pressure drop warning ---there is a rarity however
an oil filter may be improperly installed or the OIL Pressure connection on the oil pressure
sending unit --usually next to the filter --is loose or corroded or the oil pressure sending unit may
be going bad ---on a 2001 it is conceivable
otherwise you have an internal oil pressure leak --crank or cam bearings --bad o ringy thingy somewhere or the oil pump --may be experiencing problem too or the pick up screen in the oil pan
is somwhat clogged ---for a clog --try what's called SEAFOAM in the oil ---the stuff actually works
like it says on the can --about 8 bucks --drive for a week --say 500 miles worth and change the oil filter again --just the filter ---either way OIL Pressure is nothing to ignore ---you need to fix that
asap depending on the problem source!!!
I hope this helps
Posted on Apr 06, 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
The first thing I would definitely do there is change the oil. Used oil tends to loose lubricity and becomes thinner than it was when in the container. When hot, it becomes even thinner and will cause a drop in pressure.
Most jeep engines hold around six quarts of oil, so by adding what you did the new oil helped a bit but cannot correct the problem.
I would change the oil and use either a 20w50 oil with a pint of Marvel oil, or change to a good synthetic with a container of Lucas additive. It is possible that whatever oil you have been using is causing a carbon buildup that is beginning to block off the pump pickup screen. Either of the above suggestions will help with that. In engine oils, price is important...cheaper oils are high paraffin base which causes deposits to form.
You don't want that in your engine. Only exception is Wal-mart store brand oil which I believe is Quaker State (re-packaged). If you opt for a synthetic, it's not a bad choice and is cheaper.
Make sure you use a good quality filter. The filter is what keeps the oil clean and useful during its lifespan.
One note... If there is any tapping or knocking inside the engine, that is caused by internal bearing wear and should be corrected immediately. No oil can compensate for internal pressure loss and if caught early, can be repaired. (otherwise, later, engine will need to come out and be overhauled or replaced.)
Any pressure problems can be verified by installing an external mechanical gauge on the engine. That is the only way to know exactly what is going on with any degree of accuracy. (dash gauge is electro-mechanical).
Posted on Dec 18, 2009
Testimonial: "Thank you SO very much for replying so quickly. Money has been so tight and with Christmas next week it just makes me sick to think of car trouble."
possibly the pcv but check if your cars exhaust smoke is blueish or white in color if it does and your car doesnt have an oil leak then sure its burning engine oil along with fuel, the piston rings is defective, since you replaced engine oil the additive that the owner has put with the oil to prevent blowby is gone thats why it starts burning oil.....
Posted on Apr 14, 2010
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