No oil pressure in engine.
replace oil pump in engine 6.0 L on 2003 Cadillac Escalade
Did You Check To See If The Oil Level Is Full?
I would first check and make sure you have the correct amount of oil. If that is the case then I would check the oil pressure sensor to make sure that is functioning correctly. If in fact you do need to replace the oil pump then it is 4.6 hours for a 2WD and 5.2 hours for a 4WD.