Before I would go to the trouble of removing the pan, I would suggest getting a mechanical oil pressure gauge (which most parts stores will lend or rent to you) and confirm that the pressure is actually low. You may just have a bad switch. However, if you remove the pan, it is a straight forward job on this vehicle. If I recall correctly, the 03 is able to be removed without removing other parts.
Let me know if you have other specific questions.
Wednesday, October 30th, 2013 AT 5:10 PM