1999 SUBARU LEGACY Fuel drain valve

15. Vent Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel tank.
S2M0169A
6) Remove protector cover.
B2M1773
7) Move clips, and disconnect hoses from vent
valve.
B2M1792
8) Remove nuts which install vent valve on fuel
tank.
B2M1793
21
[W15A0]2-1SERVICE PROCEDURE
15. Vent Valve

9) Installation is in the reverse order of removal.
CAUTION:
Replace rubber seat with a new one.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1794A
16. Shut Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel filler pipe.
B2M1756
22
2-1[W16A0]SERVICE PROCEDURE
16. Shut Valve

9) Installation is in the reverse order of removal.
CAUTION:
Replace rubber seat with a new one.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1794A
16. Shut Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel filler pipe.
B2M1756
22
2-1[W16A0]SERVICE PROCEDURE
16. Shut Valve

6) Disconnect evaporation hoses from shut valve.
B2M1796
7) Remove shut valve from fuel filler pipe.
B2M1797
8) Installation is in the reverse order of removal.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1797
17. Drain Valve
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Lift-up the vehicle.
3) Remove canister.
B2M1780
4) Disconnect connector from drain valve.
B2M1788
5) Disconnect evaporation hoses from drain valve.
B2M1798A
23
[W17A0]2-1SERVICE PROCEDURE
17. Drain Valve

6) Disconnect evaporation hoses from shut valve.
B2M1796
7) Remove shut valve from fuel filler pipe.
B2M1797
8) Installation is in the reverse order of removal.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1797
17. Drain Valve
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Lift-up the vehicle.
3) Remove canister.
B2M1780
4) Disconnect connector from drain valve.
B2M1788
5) Disconnect evaporation hoses from drain valve.
B2M1798A
23
[W17A0]2-1SERVICE PROCEDURE
17. Drain Valve

TROUBLE PROBLEM PARTS, ETC. POSSIBLE CAUSE RANK
5. Engine does not return to
idle.Fuel injection system A
IIntake systemILoosened or cracked vacuum hose A
IOthersIStuck or damaged throttle valve A
IAccelerator cable out of adjustment B
6. Dieseling (Run-on)IFuel injection system A
ICooling systemIOverheating B
IOthersIMalfunction of evaporative emission control system B
7. After burning in exhaust
systemIFuel injection system A
IIntake systemILoosened or cracked intake duct C
ILoosened or cracked PCV hose C
ILoosened or cracked vacuum hose B
IDefective PCV valve B
ILoosened oil filter cap C
IBeltIDefective timing B
ICompressionIIncorrect valve clearance B
ILoosened spark plugs or defective gasket C
ILoosened cylinder head bolts or defective gasket C
IImproper valve seating B
IDefective valve stem C
IWorn or broken valve spring C
IWorn or stuck piston rings, cylinder and piston C
IIncorrect valve timing A
ILubrication systemIIncorrect oil pressure C
ICooling systemIOver cooling C
IOthersIMalfunction of evaporative emission control system C
8. KnockingIFuel injection system A
IIntake systemILoosened oil filter cap B
IBeltIDefective timing B
ICompressionIIncorrect valve clearance C
IIncorrect valve timing B
ICooling systemIOverheating A
9. Excessive engine oil con-
sumptionIIntake systemILoosened or cracked PCV hose A
IDefective PCV valve B
ILoosened oil filter cap C
ICompressionIDefective valve stem A
IWorn or stuck piston rings, cylinder and piston A
ILubrication systemILoosened oil pump attaching bolts and defective
gasketB
IDefective oil filter seal B
IDefective crankshaft oil seal B
IDefective rocker cover gasket B
ILoosened oil drain plug or defective gasket B
ILoosened oil pan fitting bolts or defective oil pan B
76
2-3a[K100]DIAGNOSTICS
1. Engine Trouble in General

TROUBLE PROBLEM PARTS, ETC. POSSIBLE CAUSE RANK
5. Engine does not return
to idle.IFuel injection system A
IIntake systemILoosened or cracked vacuum hose A
IOthersIStuck or damaged throttle valve A
IAccelerator cable out of adjustment B
6. Dieseling (Run-on)IFuel injection system A
ICooling systemIOverheating B
IOthersIAccelerator cable out of adjustment B
7. After burning in exhaust
systemIFuel injection system A
IIntake systemILoosened or cracked intake duct C
ILoosened or cracked PCV hose C
ILoosened or cracked vacuum hose B
IDefective PCV valve B
ILoosened oil filler cap C
IBeltIDefective timing B
ICompressionIIncorrect valve clearance B
ILoosened spark plugs or defective gasket C
ILoosened cylinder head bolts or defective gasket C
IImproper valve seating B
IDefective valve stem C
IWorn or broken valve spring C
IWorn or stuck piston rings, cylinder and piston C
IIncorrect valve timing A
ILubrication systemIIncorrect oil pressure C
ICooling systemIOver cooling C
IOthersIMalfunction of evaporative emission control system C
8. KnockingIFuel injection system A
IIntake systemILoosened oil filler cap B
IBeltIDefective timing B
ICompressionIIncorrect valve clearance C
IIncorrect valve timing B
ICooling systemIOverheating A
9. Excessive engine oil
consumptionIIntake systemILoosened or cracked PCV hose A
IDefective PCV valve B
ILoosened oil filler cap C
ICompressionIDefective valve stem A
IWorn or stuck piston rings, cylinder and piston A
ILubrication systemILoosened oil pump attaching bolts and defective gasket B
IDefective oil filter seal B
IDefective crankshaft oil seal B
IDefective rocker cover gasket B
ILoosened oil drain plug or defective gasket B
ILoosened oil pan fitting bolts or defective oil pan B
74
2-3b[K100]DIAGNOSTICS
1. Engine Trouble in General

(1) Clamp
(2) Fuel delivery hose A
(3) Fuel filter bracket
(4) Fuel filter holder
(5) Fuel filter cup
(6) Fuel filter
(7) Evaporation hose
(8) Clip
(9) Fuel delivery hose B
(10) Fuel return hose
(11) Roll over valve
(12) Roll over valve bracket
(13) Evaporation hose H
(14) Evaporation hose I
(15) Evaporation pipe B
(16) Evaporation hose J
(17) Evaporation hose K
(18) Joint pipe
(19) Canister hose A(20) Air filter hose A
(21) Drain valve hose
(22) Air filter hose B
(23) Air filter
(24) Drain valve
(25) Canister upper bracket
(26) Cushion rubber
(27) Canister lower bracket
(28) Canister holder
(29) Evaporation hose L
(30) Pressure control solenoid valve
(31) Canister hose B
(32) Pressure control solenoid valve
holder
(33) Canister
(34) Fuel pipe ASSY
(35) Fuel filler pipe
(36) Evaporation hose M
(37) Evaporation hose N(38) Shut valve
(39) Packing
(40) Ring A
(41) Ring B
(42) Fuel filler cap
(43) Fuel filler pipe protector
(44) Tapping screw
(45) Evaporation hose O
(46) Joint pipe
(47) Evaporation hose P
(48) Evaporation hose Q
(49) Evaporation pipe
Tightening torque: N´m (kg-m, ft-lb)
T1:
23±7 (2.3±0.7, 16.6±5.1)
T2:25±7 (2.5±0.7, 18.1±5.1)
6
2-8[C200]COMPONENT PARTS
2. Fuel Line