Pull off the right front tire (passenger side) and you will see it.
Check with manual gauge - if pressure normal - could be defevtive oil pressure sensor or gauge
Remove oil pan
right above the oil filter
Yes.
4 quarts
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.
4 quarts
10w30 motor oil should work nice
4 Liters if you use a standard recommended oil filter.
the starter is under the car by the oil filter
behind wheel well on the right side