found this on a Ford-trucks forum.
http://www.ford-trucks.com/forums/570551-ranger-3-0l-component-locations.html
They even put up pictures!!
Are you referring to the (oil pressure sensor) or the (oil pressure regulator)?
oil pressure sensor bad
An oil level sensor will shut down the Ford Expedition. If the oil level sensor senses that the vehicle is low on oil, a light will alert you to the fact before the vehicle shuts down.
my dear ; i have SUV car ford expedition v8 model 2004 give my alarm low oil pressure , so i like to knew the reason for this , what could be the cause . thank you
oil pressure
any pictures
Check the engine oil level. If low, add oil. If not, then something wrong with sensor.
Oil Pressure Sensor Testing 1. Test and verify the engine oil pressure. If no or insufficient pressure exits, oil pressure problem exits and gauge and sensor are operational, repair oil pressure problem. 2. Check the appropriate fuse before attempting any other diagnostics. 3. Unplug the sensor electrical hardness. 4. Using an ohmmeter, check continuity between the sensor terminals. 5. With the engine stopped, continuity should not exist. Ø The switch inside the oil pressure sensor opens at (6) psi or less of pressure. 6. With the engine running, continuity should exist. 7. If continuity does not exist as stated, the sensor is faulty.
The oil pressure sending unit is threaded into the oil filter housing on a 2 wheel drive. A 4 wheel drive has the oil pressure sending unit located on the drivers side of the engine block just below the cylinder head.
There is no such thing as an oil pressure switch on your 1994 Ford Ranger 3.0 liter engine. There is an oil pressure sensor. The oil pressure sensor can be found on the left-hand side of the engine.
Oil Pressure Sensor Testing 1. Test and verify the engine oil pressure. If no or insufficient pressure exits, oil pressure problem exits and gauge and sensor are operational, repair oil pressure problem. 2. Check the appropriate fuse before attempting any other diagnostics. 3. Unplug the sensor electrical hardness. 4. Using an ohmmeter, check continuity between the sensor terminals. 5. With the engine stopped, continuity should not exist. Ø The switch inside the oil pressure sensor opens at (6) psi or less of pressure. 6. With the engine running, continuity should exist. 7. If continuity does not exist as stated, the sensor is faulty.
Oil Pressure Sensor Testing 1. Test and verify the engine oil pressure. If no or insufficient pressure exits, oil pressure problem exits and gauge and sensor are operational, repair oil pressure problem. 2. Check the appropriate fuse before attempting any other diagnostics. 3. Unplug the sensor electrical hardness. 4. Using an ohmmeter, check continuity between the sensor terminals. 5. With the engine stopped, continuity should not exist. Ø The switch inside the oil pressure sensor opens at (6) psi or less of pressure. 6. With the engine running, continuity should exist. 7. If continuity does not exist as stated, the sensor is faulty.