:  Mar 14, 2006



Overview

As diagnosis of the different areas of the engine is covered in other sections and by general procedures, this section is limited to an oil pressure test.

For specific areas of the engine, refer to the general procedures in this section and the relevant section of the manual.

Inspection and Verification

. Verify the customer concern.

. Visually inspect for obvious mechanical faults.

Mechanical
  • Engine oil level
  • Coolant level
  • Transmission fluid level
  • Fuel level
  • Coolant leaks
  • Oil leaks
  • Fuel leaks
  • Visibly damaged or worn parts
  • Loose or missing nuts or bolts
  • Fuel contamination/grade/quality
  • Sensor fitment/condition
  • Viscous fan and solenoid

. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before carrying out the following procedure.
  Make sure that all DTCs are cleared following rectification.


Oil Pressure check

:
  Prior to checking the engine oil pressure, a road test of 6 miles (10 kilometers), must be carried out. Do not attempt to attain engine normal operating temperature by allowing the engine to idle.

.
  : The spilling of hot engine oil is unavoidable during this procedure, care must be taken to prevent scalding.

  : Wear protective gloves.

Remove the oil pressure sensor.


. Install the special tool to the oil filter housing.

. Install the special tool gauge and tighten the union.



. Check and top-up the engine oil, if required.

. Start and run the engine.

. Note the oil pressure readings with the engine running at idle and 3500 RPM.


. Turn off the engine.

. Remove the special tools.

. Install the oil pressure sensor.


. Check and top-up the engine oil, if required.