Probably a vacuum leak. Do you have a code P0171 or P0174?
It should reset itself when the coolant is back to the appropriate level as long as the sensor is working properly. If you look in the overflow reservoir and can see coolant, the sensor or wiring might be the problem.
Not as long as the computer detects a problem
Oldsmobile was a brand of automobiles produced by General Motors (GM) from 1897 until 2004. The brand is known for its innovation and was one of the first to mass-produce vehicles. While Oldsmobile vehicles used engines produced by GM, the brand itself is no longer in existence.
A gas gauge that stays on empty in a 1998 Oldsmobile Aurora could be due to a faulty fuel level sending unit, which is part of the fuel pump assembly and measures the fuel level in the tank. Additionally, wiring issues or a blown fuse in the gauge circuit could also be the culprit. If the gauge itself is malfunctioning, it may require replacement. Diagnosing the issue typically involves checking the sending unit and associated electrical components.
The check engine light is on because there is a problem detected. Until the problem is resolved the light will continue to come on. Once the problem is fixed and the ECM is satisfied after a few drive cycles, the light will clear itself.
The Oldsmobile LX5, 3.5L V6 is a (DOHC) dual over head cam, engine. It doesn't have rocker arms, but roller cam followers. The followers itself can fail in the form of a faulty roller, but more likely the hydraulic tappet/slack adjuster that the end of the follower rides on or the valve spring itself is faulty/broken.
Most likely it is a problem with the gas cap itself. Make sure it is closed properly. Most likely it is a problem with the gas cap itself. Make sure it is closed properly.
If you have fixed the problem it should reset itself. If not, the light will stay on.
Repair the problem and it will typically reset itself after 3 starting cycles.
It will automatically reset itself after you have started the car 50 times after the problem was fixed, or sometimes if you disconnect the battery for a while it will reset itself.
The problem has gone away and the computer has passed the required tests enough times.
I had a 1994 mercury villager I was having the same problem it shutting down when the engine got warm. The distributor was the problem . After I changed it I never had another problem with it shutting down anymore. Good luck