Series 50

Section 26.1 Improper Engine Oil Level

Section 26.1
Improper Engine Oil Level

To determine if improper engine oil level is causing low oil pressure, perform the following steps: ‪

  1. Ensure that the vehicle is parked on level ground.
  2. Check the engine oil level; refer to "13.5.1 Lubricating Oil" .
    1. If the engine oil level is correct, check lubricating oil viscosity, refer to "26.2 Improper Lubricating Oil Viscosity" .
    2. If the engine oil level is incorrect, refer to "26.1.1 Low Engine Oil Level Resolution" .

Section 26.1.1
Low Engine Oil Level Resolution

Perform the following steps for low engine oil level:‪

  1. Fill engine oil pan to correct level; refer to "13.5.1 Lubricating Oil" .
  2. Verify low engine oil resolution; refer to "26.1.1.1 Test for Proper Engine Oil Level" .
Section 26.1.1.1
Test for Proper Engine Oil Level

Perform the following to determine if properly filled oil pan 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.
    Click to see this graphic in a separate window

    Figure 1. Typical Display Data Line Adaptor

  2. Start and vary engine speed between 1800-2100 r/min.
  3. Visually examine the DDR for oil pressure reading.
    1. If the DDR indicates oil pressure greater than 241 kPa (35 lb/in.2 ), at 1800 r/min, 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 lb/in.2 ), at 1800 r/min, shut down the engine and disconnect the DDR. Check lubricating oil viscosity; refer to "26.2 Improper Lubricating Oil Viscosity" .


Series 50 Service Manual - 6SE50
Generated on 10-13-2008

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