2003 cavalier, ecotec approx 240k on car and 140k on motor.
I just replaced the balance shaft timing chain, (had already done the cam chain). I then replaced the seal on the cover for the crank and the seal for the whole timing cover. Car ran fantastic for a day and half. Got home earlier today, and put a new battery in the car, and after i started it the oil light came on. There is a little more noise than yesterday, but it doesn't sound like its running without oil. The light is lit, but the car runs. Also, I changed the oil yesterday, and replaced the filter. Im trying to figure out if its the pump, main bearings, faulty filter or just a bad sensor. Any ideas?