thanks for your reply , usually changing the oil on 2000 miles , was using Mobil 20W50 this is common in Saudi Arabia ,
i just changed the Oil and oil Filter,and used 10W40 on a hope that thinner oil may somehow help to open clogged screen , not sure it this makes a sense but trying anything before i go for opening the oil pan option which i guess not so easy with 4WD.
now trying to hear the tapping , but is no longer heard at least so far few hours after changing the oil and filter.
was unable to determine the exact location of the Oil pressure sensor , but found some sensors around the filter that the wires was full of oil perhaps due a possible to leaking in the area , cleaned them , blown them with compressed Air.
a free tech advice ! told me not worry about the oil pressure getting high while accelerating ,as their is a bypass valves that reliefs the oil pressure once it got higher than the max. allowable level . at least it indicates that the pump is not the issue .
And asked me to use the car and carefully monitor the gauge and sound for few days !
am about to travel 500 miles but will not trust the engine till i monitor it for .......
however will let you know ! Best Regards