I have a 08 tahoe it has had great oil pressure untill the other day the oil pressure went down to 5 psi bells went off and said turn off engine .It did not rattle clatter ran smooth did not drop pow
the pressure dropped it did not rattle clatter or drop spark and it runs smooth
and fine. Have a new sensor put in and it did good but it is doing the same
thing .Took it back to have a mechanical gauge put on and it starts out good
and after it run pressure drops off put it still run good. could it picking up junk
and putting to screen and tun off falls back down and then brings it back up
again The moter has only 143000 run good no issues.Thank BOB