NON-RETURN VALVE INSPECTION [LF, L3]
id0114008036a4
1. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [LF, L3].)
2. Siphon the fuel from the fuel tank.
-
Note
-
• Non-return valve is integrated in the fuel tank.
-
• The non-return valve is normally closed by the spring force.
3. 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.