To remove the switch, first, locate it screwed into the oil filter adapter at the oil filter. Ensure the vehicle is parked on firm, level ground, then open the hood and disconnect the negative battery cable. Raise the front of the vehicle and support it securely on jackstands. Unplug the wiring from the Oil Pressure Switch and unscrew it, being prepared for some oil loss. For installation, reverse the removal process while noting to apply a small amount of pipe sealant (Teflon type) to the switch threads and install it securely. After installation, check the engine oil level and top it off as necessary, then verify correct oil warning light operation and look for signs of oil leaks once the engine has been started and fully warmed up.