Question about 2002 Oldsmobile Bravada
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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Posted on Jan 02, 2017
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!
1996 Oldsmobile Aurora
4.0L DOHC 32V V8
Posted on Aug 19, 2008
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.
Posted on Mar 08, 2009
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
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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