Oil pressure guage on dash shows very low but notice oil is up op dip stick when motor is running how do I check to see if oil pump is working properly. what guages can I put on engine to check and where is it on the engine engine is 3vz-e 6 cyl. 1990 4 runner automatic vin JT3VN39W3L0022874
Hi there You should check the oil pressure sensor/wiring should be located around the oil filter area usually. If you can't see any obvious issues than post another question with you progress and ill help you work through it...
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hot engine or cold, or both, running 0w oil? what year,m cr-v.
what is engine RPM at low pressure.
does the dip stick show full ? engine ?
ever changed out the engine oil this decade.?
yes, you are in danger of ruining your motor.. check your oil by pulling out the dipstick, wiping the oil of the end of the dipstick and replace it fully down again into the dipstick tube. Pull it out again and check the level of the oil. If it is low, add oil before driving. If it does not show on the dipstick, add 1 quart at time and check the level each time before adding more, until it is to the correct level marked in the dipstick
The oil pressure switch or sending unit is a unit that receives an electrical signal showing what your cars oil pressure is.And yes it does partially does let you know when there is a problem somewhere in the oil system.For example if your filter gets clogged up your oil pressure will go down and then go up when you accelerate.If there was a leak in the system first you would probably see the leak And if the oil pump or oil pump shaft were to break you would have no oil pressure.So you can see the importance of having an oil pressure switch.I feel there are 2 guages that are important to watch are your oil guage and water temp guage they can tell you allot about how your car is operating.
You have low oil pressure. It can be nothing more than the oil pressure sending unit is leaking or defective or a bad filter. Remove the filter and install a Motorcraft, Purolator, or Wix filter. If that does not solve the problem, I would check the wiring and if it is ok, replace the oil pressure sending unit before looking for anything else. If that does not cure the low oil pressure then your oil pump may be weak or the oil pump inlet screen is clogged. Your car is 11 years old and if it has been neglected then that is a possibility. Do not drive the car with low oil pressure or you will destroy this engine.
Your oil pump is bad or you have a restriction in the oil system. The noises are you bearings in the engine starving for oil. If you drive this vehicle before repair you will need a new engine or rebuild that one. I don't know how much damage is done and the bottom end may already be beyond a simple repair. Worst case you will need to have the engine rebuilt.
Have a great day any questions please let me know
If the car will not start back up (won't crank or turn over) you are in big trouble. Because that means the engine is seized up and will require either a new engine or a re-manufactured unit. Did the oil pressure light (or any light for that matter) illuminate on the dash. If no turn the key to ignition not run, and see if the oil light illuminates, it should, if it dosen't either the bulb is blown, the sending unit is bad or the wiring is open. My guess is all the oil shot out of the dipstick, ran low on oil and the engine seized up. I'm sure this isn't the answer you were looking for but good luck. Sorry about your misfortune.
The white strip of fluid on the oil is a slight amount of coolant getting into the oil . The water could be from condensation on the dip stick. I would drain the oil and just put regular recommended oil in it with a new filter. I would pull the spark plugs and check for any coolant or oil residue on them.Then drive the vehicle a little and check the performance. If there is unusual noise from the engine then or blue smoke from the tailpipe the engine has internal damage.
Assuming the engine performance stays the same. There could be a fuel injector sticking intermitantly.