right above the oil filter
the starter is under the car by the oil filter
behind wheel well on the right side
right next to the oil filter.
Check with manual gauge - if pressure normal - could be defevtive oil pressure sensor or gauge
Remove oil pan
Trick question there is no 2004 Pontiac sunbird. 1994 sunbirds which is the last year have the oil filter by the right side wheel well, this is similar for the "Sunfire" of later years.
yes, it's on the side of the oil pan and looks like a big nut, butch