Thread: Low Oil Level Light Still Comes On After Low Oil Level Sensor Replacement

the sensor in the pan is for oil level. you shouldnt have to ever see that light because you check your dipstick every so often, right?

the sensor on the oil pump housing is for oil pressure. if that light ever comes on it's too late because it only comes on when it sees less than 5psi and that's way too low. expect a new bottom end if you're seeing this light.

Have the same problem with the 98, exact symptoms. Replaced the sensor and no change.

Sent from my SPH-L720 using Tapatalk

No sludge on the 98, I only changed the sensor because I changed the pan and gasket.

Sent from my SPH-L720 using Tapatalk

Changed the pan? Nice. Thats not as simple as it sounds.

I have gone through 2 oil sending units since this original post. Seems to take care of the problem for a good while.

Also the 20w-50 was just an experiment (mechanic had me come by and check oil pressure a few times to see what was going on). Next oil change went back to 10-30 and replaced sender the first time.

Just to update this as my case was resolved 100%.

Apparently I hit something dead center on the oil pan. This damaged the oil pickup.

The pressure was verified with a mechanical guage. Low after 3,000 miles on castrol 10-30 synthetic high mileage. Normal after oil change with the same stuff.

Damaged pick up caused the top oil in the pan to immediately go back into the engine. Wearing out the oil much faster than normal. Thus causing the low pressure.

So, by looking at my earlier post as a start date, I drove it 60,000 miles like that. Then traded it in.

Sent from my SM-G920P using Tapatalk

No. I had the red low oil pressure light.

The low oil level sensor was surprisingly accurate.

Sent from my SM-G920P using Tapatalk

Back on topic regarding Low oil LEVEL sensor, I had an idea that maybe worth trying....I sold the 98 sedan so my immediate issue is fixed....BUT....if you look at the sensor, it's basically an arm with a float on the end, essentially a float switch. I wonder if it's possible to install the switch so that it's 180* off? In other words upside down? Or if it's possible to thread it in so that the float is not exactly perpendicular to the oil level? Depending on how the threads are cut on the switch and/or pan, it may be possible to start it incorrectly so that when it threads in it winds up in the wrong orientation. Thi is just a SWAG in my part, but what else would explain it?

Other theory is that the wiring is fragile and by unplugging/plugging in the new sensor the wiring gets damaged.

My light recently started coming on too but when I check the oil its within range, only needing maybe half a quart so I topped it off but guess I really didn't have to.