Series 60 DDEC V Troubleshooting – Section 2.4 Faulty Oil Pressure Gauge Sensor

Section 2.4
Faulty Oil Pressure Gauge Sensor

To determine if a faulty oil pressure gage sensor is causing low oil pressure, perform the following steps:‪

1. Install the Diagnostic Data Reader to the vehicles Display Data Line Adaptor, see Figure "Typical Display Data Line Adaptor" ; refer to OEM guidelines.
2. Start and vary the engine speed between 1800 - 2100 rpm.
3. Visually examine the DDR for oil pressure reading.
   1. If the DDR indicates oil pressure greater than or equal 241 kPa (35 psi) at 1800 rpm, shut down the engine and disconnect the DDR, check oil pressure gage sensor line for obstruction; refer to "2.5 Oil Pressure Gauge Line Obstructed" .
   2. If the DDR indicates oil pressure less than 241 kPa (35 psi) at 1800 rpm, shut down the engine; refer to "2.4.1 Oil Pressure Gage Sensor Replacement" .

Section 2.4.1
Oil Pressure Gage Sensor Replacement

Perform the following steps to replace the oil pressure gage sensor: ‪

1. Remove and replace the oil pressure gage sensor; refer to OEM guidelines.
2. Verify replaced oil pressure gage sensor; refer to "2.4.1.1 Test the Engine with Replaced Oil Pressure Gage Sensor" .

Section 2.4.1.1
Test the Engine with Replaced Oil Pressure Gage Sensor

Perform the following steps to determine if replaced oil pressure gage sensor resolved low oil pressure: ‪

1. Install the Diagnostic Data Reader to the vehicles Display Data Line Adaptor, see Figure "Typical Display Data Line Adaptor" ; refer to OEM guidelines.
2. Start and run engine speed at 1800 rpm.
3. Visually examine the DDR for oil pressure reading.
   1. If the DDR indicates oil pressure greater than or equal 241 kPa (35 psi) at 1800 rpm, shut down the engine and disconnect the DDR. No further troubleshooting is required.
   2. If the DDR indicates oil pressure less than 241 kPa (35 psi) at 1800 rpm, shut down the engine and disconnect the DDR. Check oil pressure gage sensor line for obstruction; refer to "2.5 Oil Pressure Gauge Line Obstructed" .