- 12.90.09.01
- Engine oil pressure check
- TDV8
- 1.30
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Special Tool(s)
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 (general)
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection
| Mechanical | Electrical |
- 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
- Active engine mounts, correct fitment/damage
- Routing of pipework etc to avoid vibrations
- Contact anywhere between the driveline and chassis
|
- Fuses
- Fuse 3E, engine compartment box
- Wiring harness
- Electrical connector(s)
- Injectors
- Glow plugs
- Active engine mounts
- 5 volt sensor supply
- Sensor(s)
- Viscous fan solenoid
- Engine control module (ECM)
|
- 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 moving onto the symptom chart or DTC index.
- Make sure that all DTCs are cleared following rectification.
Inspection and Verification (active engine mounts)
- Verify the customer concern.
- If the customer concern is of a vibration at other than idle speed, then the fault is not with the active engine mounts.
- Use the approved diagnostic system or a scan tool to retrieve any fault codes, as other causes of vibration or misfire should be eliminated before condemning an active engine mount.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection
| Mechanical | Electrical |
- Active engine mounts, correct fitment/damage
- Routing of pipework etc to avoid vibrations
- Contact anywhere between the driveline and chassis
|
- Fuse 3E, engine compartment box
- Harnesses/connectors
- Active engine mounts
- Engine control module (ECM)
|
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding.
- If any non-engine-mount DTCs were present in the steps above, make sure their causes are rectified before beginning any work on the active engine mounts.
- Make sure that all DTCs are cleared following rectification.
NOTE:
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
| DTC | Description | Possible cause | Action |
| P0A1413 | Engine mount control circuit A open |
- Engine mount control circuit: high resistance
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P0A1511 | Engine mount control circuit A low |
- Engine mount control circuit: short circuit to ground
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P0A1612 | Engine mount control circuit A high |
- Engine mount control circuit: short circuit to power
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P0AB613 | Engine mount control circuit B open |
- Engine mount control circuit: high resistance
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P0AB711 | Engine mount control circuit B low |
- Engine mount control circuit: short circuit to ground
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
| P0AB812 | Engine mount control circuit B high |
- Engine mount control circuit: short circuit to power
- Engine mount fault
| Check the engine mounts and circuits. Refer to the electrical guides. Rectify as necessary. Clear the DTCs and test for normal operation. |
For a complete list of all Diagnostic Trouble Codes (DTCs) that could be logged in the Engine Control Module, please refer to, REFER to: Electronic Engine Controls - 3.6L (TdV8) Diesel (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Diagnosis and Testing).
WARNINGS:
-
The spilling of hot engine oil is unavoidable during this procedure, care must be taken to prevent scalding.
-
Wear protective gloves.
-
Eye protection must be worn.
NOTE:
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.
- Disconnect the battery ground cable. REFER to: Specifications (414-00 Battery and Charging System - General Information, Specifications).
- Remove the engine oil pressure (EOP) sensor. REFER to: Engine Oil Pressure Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation).
- Install the special tools.
CAUTION:
Make sure that the mating faces are clean and free of foreign material.
- Install the brake vacuum pump. REFER to: Brake Vacuum Pump - TDV8 3.6L Diesel (206-07 Power Brake Actuation, Removal and Installation).
- 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. REFER to: Specifications (303-01D Engine - TDV8 3.6L Diesel, Specifications).
- Remove the special tools.
- Install the oil pressure sensor. REFER to: Engine Oil Pressure Sensor (303-14D Electronic Engine Controls - TDV8 3.6L Diesel, Removal and Installation).
- Check and top-up the engine oil, if required.