The low oil level sensor is located in the engine oil pan on all Navajo/B Series Pick-up models with the 3.0L and 4.0L engines.
See Figures 1 and 2
Use the accompanying diagnostic chart to help pinpoint low oil level sensor malfunctioning.The ignition switch should be turned
OFF for a minimum of 5 minutes between checks to ensure that the electronic relay, which has a 5 minute timer, has reset.
REMOVAL & INSTALLATION
See Figure 3
Always install a new gasket whenever the oil level sensor is removed
- Turn the engine OFF .
- Raise the front of the vehicle and install jackstands beneath the frame. Firmly apply the parking brake and place blocks in back of the rear wheels.
- Drain at least 2 quarts (1.9 liters) of engine oil out of the pan.
- Disconnect the sensor wiring.
- Remove the sensor from the oil pan using a 1 in. (26mm) socket or wrench. Discard the old gasket.
- Install a new gasket onto the sensor.
When installing the new gasket, the flange faces the sensor and the words "panside" should face the oil pan.
- Install the sensor and gasket assembly into the oil pan. Tighten the sensor to 13-20 ft. lbs. (17-27 Nm).
- Connect the electrical wire to the sensor.
- Lower the front of the vehicle and remove the wheel blocks.
- Refill the crankcase to the proper level.
- Start the engine and check for leaks.