Non-Return Valve Inspection
WARNING:
- Highly pressurized fuel may spray out if the fuel line is cut. Due to the following dangers occurring with a fuel spray, always complete the "FUEL LINE SAFETY PROCEDURE " to prevent the fuel from spraying.
- Fuel may cause irritation if it comes in contact with skin and eyes.
- If fuel ignites and causes a fire, it may lead to serious injury or death, and damage to property and facilities.
- A person charged with static electricity could cause a fire or explosion, resulting in death or serious injury. Before draining fuel, make sure to discharge static electricity by touching the vehicle body.
- Complete the "BEFORE SERVICE PRECAUTION". (See BEFORE SERVICE PRECAUTION .)
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION .)
- Drain the fuel from the fuel tank to the position where the non-return valve is visible. (See FUEL DRAINING PROCEDURE .)NOTE:
- Non-return valve is integrated in the fuel tank.
- The non-return valve is normally closed by the spring force.
- Verify that the non-return valve is closed.
- If the non-return valve is stuck open and does not open even when pulled up by a finger, replace the fuel tank. (See FUEL TANK REMOVAL/INSTALLATION .)