Maintenance
- Make
- Aston Martin
- Model
- DB9 Factory Workshop Manual
- Year
- Issue 2, 2005
- Section
- Fuel Tank and Lines › Maintenance
Operations on fuel system result in fuel liquid and vapour being present in the working environment. This presents a very serious risk and the following precautions must be strictly observed:
Warning
Operations on refuelling and the fuel system must only be performed by personnel who have completed training on fuel handling.
Warning
Smoking must not be allowed near the working area. "NO SMOKING" signs must be posted around the working area.
Warning
Any operation which could involve sparks or naked lights (e.g. battery testing, welding, metal grinding, etc) must not be allowed near the working area.
Warning
A CO2 fire extinguisher must be available close at hand.
Warning
Dry sand must be available close at hand to soak up any accidental fuel spillage.
Warning
If necessary, empty the fuel into an explosion proof container using suitable fireproof fuel handling equipment.
Warning
The working area must be well ventilated.
Warning
Disconnect the battery before commencing work on the fuel system.
Warning
Depressurise the fuel system before disconnecting any fuel lines.
Maintenance
Fuel System Depressurising
The fuel system must only be serviced by staff trained in fuel handling.
Warning
The fuel system is pressurised when the engine is running. Residual pressure will remain in the fuel system as the ignition is switched off. Opening a pressurised fuel line will cause a fuel leak and a fire risk.
Warning
Never break into the fuel system of a hot engine. Catalysts and exhaust systems run at high temperatures and present a serious fire risk if fuel is spilled onto them when hot.
- Read and observe fuel system safety precautions (Refer to 'Safety Precautions', page 22-8).
- Remove the fuel pump relay from the CEM.
| Repair Operation Time (ROT) | Item | Code |
|---|---|---|
| Fuel System Depressurising | 10.01 | FK |
Specifications
| Pump Pressure | Nominal pump pressure 40 psi (2.7 bar) above inlet manifold pressure. | ||
|---|---|---|---|
| Torque Figures | Description | Nm | lb. / ft. |
| Tank retaining plate bolts | 20-25 | 15-18.5 |
- Attempt to start the engine.
The engine will run for approx. 11 seconds then stall. With the fuel pumps disabled the fuel lines will depressurise.
Two fault codes will show on each bank:
• P0087 'fuel pressure too low'
• P1233 'fuel pump driver module disabled or off line'
Both of these codes can be erased from each bank after the repairs to the fuel system
Warning
Fire Risk. Before starting work on the fuel system disconnect the earth lead from the vehicle battery.
Parts & tools for this job For 2005 Aston Martin DB9
- PARTOil filterSearch: Aston Martin DB9 2005 oil filter
- TOOLOil filter wrenchSearch: oil filter wrench
- FLUIDEngine oilSearch: Aston Martin DB9 engine oil
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