Question about 2002 Oldsmobile Bravada

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Car is saying low oil pressure and to stop engine, just had oil changed. Is it a sensor or the actual oil line?

It often happens when I am sitting at a stoplight, and the car will shake/shudder and then lose power saying "low oil pressure" "stop engine" I have to put it in park and turn off and turn the car back on at the stoplight (hopefully before it turns green). I just had my oil changed, so is this some sort of an oil line problem or sensor?

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6ya6ya
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Posted on Jan 02, 2017

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  • 20 Answers

SOURCE: oil level system

It may seem obvious but do not operate the engine with it overheating as this can lead to more trouble including a cracked engine block.

Low engine oil pressure is a problem because if it exists, the critical engine parts may not get lubricated properly and may fail. Since you have ruled out external leaks, here are some possibilities:

Clogged oil filter or obstruction in the system

Loose wire or faulty oil pressure or oil level sending switch/sensor.

Possible blown head gasket. This is a serious problem that might be accompanied by white or blue exhaust smoke and a burnt coolant or oil odor. Check for oil contamination with coolant. The dipstick may show a brown milky film/sludge or smell like burnt coolant indicating contamination.

Engine oil pump is possibly bad. This is a serious problem. It's usually time to swap out or rebuild the engine, particularly if it has many miles.

Possible but unlikely in this case is a problem with PCU (Power Control Unit) that runs the Information Center. PCU problems are often indicated by getting other unrelated errors on the info display or "DATE NOT AVAILABLE" for extended periods when you start the car.

You did not mention the Check Engine/Service Engine Soon light being on, but if so I would get the trouble codes read at the OBD II connector. The codes might indicate a sensor problem. Some auto stores do this for free. Either way, I would assume the worse case scenario (bad oil pump) and address it immediately. Unfortunately, due to the complex nature of the car, most things are not easy to diagnose and repair by the do-it-yourselfer. Hopefully though it is just a sensor but with a temperature rise, I would be careful.

Best of Luck!

SC442299

1996 Oldsmobile Aurora
4.0L DOHC 32V V8
Autobahn Option

Posted on Aug 19, 2008

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GM Elec
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SOURCE: 1996 Olds ciera, V6, Engine dies when put in drive

Try disconnecting the electrical connector at the transmission and see if it stall when you put it in gear. You will get a service engine light, but not to worry, it will go back out once you reconnect.
By disconnecting the wire connector we can tell if it is transmission related.
Good luck, let me know.
Regards,

Posted on Mar 08, 2009

  • 1 Answer

SOURCE: Car stumbles,hesitates,loses power on Hwy, randomly

Did you check earth connection of electric system?

Posted on May 10, 2009

Molson02536
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SOURCE: Low oil pressure light goes on until car warms up. Oil level is good

The oil pressure sending unit has gone bad. I sending unit is just above the oil filter and you can get to it from the top. When you face the Engine look down towards the oil filter, the oil pressure sending unit is just above that and it looks like a cylinder with two wires coming from it. If you don't see it, it's right between the exhaust manifold and oil filter.
If you go to Auto Zone or Parts Source, they'll have the oil pressure sending unit and the step by step instructions, When installing the new sensor. Do not use teflon tape or any sealant, the sensor is tapered and need's the good ground from the engine to give you right readings.
Good luck and hope this helps.

Posted on May 11, 2009

aenubis
  • 1 Answer

SOURCE: When I turn the steering wheel the low trac light

I have a 2001 olds alero and my trac light, abs, and service vehicle soon light come on. I was told this is due to a small wire for the ABS in the wheel bering

Posted on Oct 28, 2009

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2 Answers

Will the oil sensor switch shut the engine down


Well, yes and no.
If the red oil pressure light comes on, yes the engine could stop running. You could actually lose oil pressure, or the switch could fail.
A "change oil" notice would not cause the engine to stop.

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Low oil pressure light came off and on


I agree. The oil sending unit (sensor) could be giving a false reading. Replace the sensor, have the codes cleared. Also know, that disconnecting the battery multiple times will\can cause the computer to send out false defaults and thus check engine light etc will come on. I also suggest having the mechanic who did your oil change (if applicable) do a pressure test on your cylinders as you may also have bad "O" Rings. This will only cause your engine to burn oil, miss slightly, however, will progress over time if not corrected

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Does Low Oil Pressure=new engine?


Your oil pressure should be between 10 and 20 psi. And if it is low or you don't have Amy oil pressure change the pump. But no you don't need a new engine if you fix the problem in time

Apr 23, 2017 | 2007 Mazda CX-7 Grand Touring

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I have 2002 gmc envoy, oil pressure low, stop engine warning only comes on when i stop on a hill?


The pressure regulator in the oil pump may not be working, the idle speed may be too low and there may be a lot of wear on internal engine parts lowering oil pressure

May 30, 2014 | 2002 GMC Envoy

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My oil light is coming on but i have oil in the car


Check the oil pressure sensor. If it's bad, the ECU may shut the engine off if it thinks the engine has low oil pressure. If the sensor itself is okay, then you'll need to have the engine oil pressure checked with a gauge. If oil pressure is actually low, then there is probably something wrong (worn bearings, etc.) in the engine itself.

Mar 05, 2013 | 1999 Ford Contour

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Low oil pressure light comes on when i stop giving the car gas like when i come to a stop sign or light and every now and again the check engine light comes on. I change the oil to a heavier oil and the...


This may mean engine wear or bad oil pump. I would have the oil pressure tested to see if its a shot some where or if the pressure is really low, this is done by removing the sensor and installing a gauge and driving the car to see if the pressure is low, if the pressure is low then more checking is neede to see why,you may have worn engine bearings or bad oil pump. depending on the mileage it may be smarter to replace the engine, not knowing what internal damage has been done already. good day.

May 10, 2011 | 2006 Pontiac Grand Prix

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On my 93 Dodge Caravan ES 3.3L, when it comes to a stop and idles (at a light mostly) the check gauges light comes on. When the check gauges light comes on the oil gauge is at the bottom. When I tap...


Okay What it means is that the oil in your car is either low in level or the oil pressure at low revolutions is low. I highly recommend you to stop driving the car when this happen because you can internally damage the engine with a low oil or a low pressure of oil. Check the oil level first..make sure level is fine and oil looks good. Black and burned oil will give you a low oil pressure as well. If it happen that your car need a oil change. Make sure you get it done and see if the problem goes away. Very rarely oils pressure sensor goes bad but if oil is new and level is fine you can take the oil pressure sensor and connect a tester for a oil pressure. If this is not under the manufacturer specifications.. oil pump is worn out and you have to replace it for a new one.
Good luck and don't forget to rte me. Thanks

Mar 22, 2011 | Dodge Caravan Cars & Trucks

1 Answer

Oil light flickers on and off however dipstick is showing full of oil. Suggestions? Thanks....


One of two things may be happening. If the oil light stays off until the engine warms up and then begins to flicker on/off when you are idling & in gear [say at a stop sign] then you could actually have low oil pressure due to worn internal engine parts, OR, you could have a faulty sending unit that is reading the pressure incorrectly [usually low] and turning on the light. The best way to find out for sure is to have someone remove the sender and thread in an oil pressure test gauge to check and see exactly how much oil pressure you really have when the engine is first started and fully warmed up. You could just simply replace the sender and if the flickering is gone after that then you should be ok but if the flickering continues then odds are you actually do have low oil pressure. I would strongly recommend having the oil pressure tested for peace of mind then you'll know for certain what is happening. Engine bearings don't survive very long without sufficient oil pressure so you should have it checked out asap.

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