No oil pressure will cause the bearings to knock and the lifters to tick. What we need to do here is make sure the oil pressure is actually low. You need to get a mechanical oil pump and check it. Most parts stores will lend you one. It plugs into where the present oil sending unit is located. Remove yours and bolt the mechanical one in.
Let me know what you find. Also, is the noise coming from the engine or could it be an exhaust issue?
Saturday, October 8th, 2011 AT 4:10 AM