Precautions on Fuel System Service
Precautions on Fuel System ServiceWARNING:
Before attempting service of any type on fuel system, the following should be always observed in order to reduce the risk of fire and personal injury.
- Disconnect negative cable at battery.
- Do not smoke, and place no smoking signs near work area.
- Be sure to have CO2 fire extinguisher handy.
- Be sure to perform work in a well-ventilated area and away from any open flames (such as gas hot heater).
- Wear safety glasses.
- To relieve fuel vapor pressure in fuel tank, remove fuel filler cap from fuel filler neck and then reinstall it.
- As fuel feed line is still under high fuel pressure even after stopping engine, loosening or disconnecting fuel feed line directly may cause dangerous spout of fuel. Before loosening or disconnecting fuel feed line, make sure to relieve fuel pressure.
- A small amount of fuel may be released when the fuel line is disconnected. In order to reduce the risk of personal injury, cover a shop cloth to the fitting to be disconnected. Be sure to put that cloth in an approved container after disconnecting.
- Never run engine with fuel pump relay disconnected when engine and exhaust system are hot.
- Note that fuel hose connection varies with each type of pipe. Be sure to connect and clamp each hose correctly.
After connecting, make sure that it has no twist or kink.
- When installing injector or fuel feed pipe, lubricate its O-ring with gasoline.
- When servicing the fuel tank, it should be treated with respect, with no contact with sharp edges or hot surfaces. In addition, the fuel tank should not be dropped since fuel tank, fuel pump and other components can be damaged by the impact. If dropped, all components should be replaced because there is a risk of damage.