Check out my DIY video tutorial for changing the oil pressure sensor on the 5.3L V8 engine in a 2000, 2001, 2002, 2003, 2004, 2005 & 2006 GM Chevy Tahoe.
These DIY instructions should be the same for other similar General Motors vehicles such as the Silverado, Suburban, Avalanche, GMC Yukon Denali, Sierra, Hummer H2 and Cadillac Escalade.
2000-2006 GM Chevy Tahoe Oil Pressure Sensor Replacement Guide