Geely FC. Manual part — 4
Geely FC. Manual part - 4
Engine control system·- Throttle body assembly
Throttle body assembly
Removing, installing and disassembling, assembling
1. Discharge coolant (see Page 73).
2. Remove air cleaner hose assembly.
3. Remove engine plastic hood components [4G18-1000310].
4. Remove throttle pull cable assembly.
5. remove throttle body assembly [4G18-1008240].
(a) Uncouple throttle position sensor joint and stepping motor joint.
(b) Disassemble ventilation hose.
(c) Remove 2 bolts and throttle control pull cable bracket.
(d) Remove 2 preheating water inlet and outlet hoses of throttle.
(e) Remove 2 bolts and 2 nuts, and remove throttle body from intake air manifold.
6. Remove stepping motor of throttle body [4G18-3600070].
Remove 3 screws and stepping motor.
7. Install stepping motor of throttle body.
Install stepping motor.
8. Install throttle body assembly.
(a) Install new seal gasket on intake air manifold.
(b) Install throttle body, 2 bolts and 2 nuts.
Torque:
9. Refill coolant.
10.Check there is leakage with coolant.
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Fuel
Fuel system
Precautions
1. Before repairing fuel system, uncouple battery negative (-) wire at first.
2. When operating on fuel system, do not smoke or repair near fire area.
3. Do not let gasoline come into contact with rubber or leather parts.
4. Take measures to prevent gasoline leaking.
(a) Uncouple electric fuel pump joint.
(b) Start engine and turn ignition switch to LOCK position
after the engine flames out.
(c) Uncouple battery negative (-) wire.
(d) Couple electric fuel pump joint.
5. Fuel system
(a) There will be a great amount of gasoline flowing out
when disassembling high-pressure fuel pipe,
therefore, it is required to observe the following
procedures.
(1) Take measures to prevent gasoline leaking.
(2) Disassemble fuel pipe.
(3) Completely discharge the oil in fuel pipe.
(4) Cover the fuel pipe with plastic bag to avoid pipe
damage and foreign matters entering.
(5) Place a container under the joint.
(b) When removing and installing injection nozzle, always
observe the following precautions.
Fuel-Fuel system
14
Fuel-Fuel system
(1) It is not allowed to use o-ring repeatedly.
(2) When installing o-ring, always be careful to avoid dam-
aging o-ring.
(3) Before installing, coat o-ring with spindle oil or gasoline.
It is not allowed to coat with engine oil, gear oil or
brake fluid.
(c) As shown in the diagram, install injection nozzle to oil feed
pipe and cylinder head.
Before installing, ensure that spindle oil and gasoline are
coated at the contact position between o-ring and oil feed
pipe.
(d) When disassembling oil feed pipe, always observe the fol-
lowing precautions.
(1) Remove oil feed pipe clips.
(2) Remove oil feed hose.
(3) Cover oil inlet of fuel distribution pipe with plastic bag
to avoid foreign materials entering the fuel distribution
pipe.
injection nozzle
6. Inspection of fuel leakage
(1) After completing maintenance, check there is leakage with the whole fuel system.
(2) Connect hand-held tester to diagnostic joint.
(3) Turn ignition switch to ON and turn main switch of hand-held tester to ON.
(4) Switch hand-held tester to function test state.
(5) For further details, please see hand-held tester operating instruction.
(6) If there is no hand-held tester, connect battery anode and cathode to electric fuel pump joint.
(7) Ensure that there is no leakage with all parts of electric fuel pump.
(8) Turn ignition switch to LOCK.
(9) Disassemble hand-held tester from diagnostic interface joint.
15
o-ring
oil feed pipe
oil feed pipe
o-ring
washer
Correct
Wrong
On-vehicle inspection
1. Inspection of fuel pump function
(a) Connect hand-held tester to diagnostic joint.
(b) Turn ignition switch to ON and turn main switch of hand-
held tester to ON.
Note: do not start the engine.
(c) Switch hand-held tester to function test state.
(d) For further details, please see hand-held tester operating
instruction.
(e) If there is no hand-held tester, connect battery positive (+)
wire to P+ terminal and negative (-) wire to P- terminal.
2. Inspection of fuel pressure
(a) Preparation of inspection.
Purchase new fuel hose and take out fuel pipe joint.
(b) Take measures to prevent gasoline leaking.
(c) Disassemble fuel pipe clamp at fuel pipe joint of fuel rail
component.
(d) Disassemble fuel hose from fuel pipe of fuel rail component.
(e) As shown in the diagram, install special tool (pressure
gauge) with special tool and fuel pipe joint.
(f) Check there is fuel leakage.
(g) Start engine.
(h) Measure the fuel pressure at idle speed state.
Fuel pressure: 390~400Pa
(i) Take measures again to prevent gasoline leaking.
(j) After measuring the fuel pressure, remove special tool.
(k) Connect back fuel hose.
(l) Install fuel hose fixing clip to fuel pipe joint.
(m)Check there is fuel leakage.
Fuel-Fuel system
Special
tool
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