I have a 1999 K2500 Suburban with 6.5L Turbo Diesel. Where are some other, alternate, locations to install an Oil Pressure sensor?
I want to put in another Oil pressure gauge to get a second opinion so to speak, the manual kind, no electronic sensor.

My oil pressure is currently reading near ZERO when oil is hot and engine comes to an idle. The "Check Gauges" light comes on. No engine knocks yet but am concerned. I have recently replaced my Oil Pressure Switch when oil pressure readings were going wild and very high. That fixed that problem. Now recently oil pressure reading at or near zero at hot idle.