Instruments.
The plug or sensor above the oil filter on a 1996 Cherokee is the oil pressure sending unit. This sensor controls the oil pressure gauge.
with a fuel pressure gauge
The gauge should be electrical.
On a 1996 Ford Explorer : ( if you have the 4.0 liter EFI , V6 engine ) The oil pressure sending unit for the gauge is on the drivers side of the engine , below the power steering pump )
Door placard says 30psi.
On a 1996 Ford Crown Victoria : The H / L ( High / Low ) gauge : On the drivers side of the speedometer is the battery voltage gauge On the passenger side of the speedometer is the engine oil pressure gauge
It's the 7.5 amp fuse in the number 10 spot.
Your check gauge light comes on if : your coolant temperature guage shows the temperature is high your oil pressure gauge shows the oil pressure is low or your fuel gauge shows the fuel tank is near empty
Worn crankshaft bearings, oil pump, or a defective oil pressure sending unit. Have a oil pressure test done with a mechanical gauge, the electric gauge is not very accurate and is prone too failure.
Check engine light : Gauge cluster without tachometer ( under the engine oil pressure gauge ) Gauge cluster with tachometer ( just to the left of the battery voltage gauge )
Check the connection on the oil pressure switch. If the connection is solid I would just go ahead and replace the oil pressure switch. They only cost on an average 7 to 13 dollars. Hope this helps.
On a 1996 Ford Explorer : ( r134a )