Geely Diagnosis Flow. Manual part - 20
Geely Diagnosis Flow. Manual part - 20
77
Throttle valve opening abnormal
Adjust
Engine with insufficient
power
Clean or replace
Air filter blocked
Intake system leaking
Repair leaks
Improper ignition timing
Throttle valve position sensor
malfunction
Adjust or replace
Adjust advance angle of initial
ignition
Fuel pressure too
low
Repair
Remove, clean oil
ejector
Replace oil injector
Replace cooling liquid
temperature sensor
Battery voltage too
low
Check charging system or replace
battery
Cooling liquid temperature
sensor malfunction
Intake manifold pressure temperature
sensor malfunction
Replace intake manifold pressure
Replace ECU contrast test
Replace ECU
Compression pressure of
cylinder too low
Remove and repair engine
No changes
Unusual
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Changes
Unusual
Abnormal
Abnormal
Abnormal
Too low
Abnormal
Unusual
Unusual
Leaking
Blocked
78
No. 046 Oil consumption too large
Malfunction Causes
Solution
Driving habit problem
Also the most common problem. The counselor shall explain to the
customer patiently and nicely, using euphemism;
Oxygen sensor malfunction
Check oxygen sensor could correctly identify concentration of gas mixture;
if not, it will cause high oil consumption;
Clearance of spark plug too
large
Clearance of spark plug is too large, causing poor ignition, which is one of
reasons causing high oil consumption;
Improper ignition timing
Check ignition timing; when the engine is at idling speed, ignition advance
angle shall be 10º~12º; if not correct, it may cause rising oil consumption;
adjust ignition advance angle of the engine;
Oil injector blocked or poor
sealing
Remove oil injector; check ejecting amounts and sealing are normal; if not,
clean or replace oil injector;
Cylinder poorly operating
Check cylinder pressure, valve, etc. If individual cylinders are not working,
repair it accordingly; replace or adjust parts causing unusual working;
Cooling liquid temperature
sensor malfunction
Check cooling liquid temperature sensor. Resistance of this sensor could be
changed according to specified standard under different temperatures; if
not, replace this sensor;
Air filter blocked
Check air filter is blocked; if so, it may cause poor intake and large oil
consumption; clean or repair it;
Poor fuel quality
Fuel with poor quality may cause this malfunction; recommend the
customer to replace it at filling station that he often uses;
Tire obviously worn or
pressure severely insufficient
Tire will cause increased friction force, balancing out partial engine power,
causing increased oil consumption;
Clutch slipping
With sudden acceleration, speed counter of the engine is quickly increased,
but the vehicle speed is very slowly increased, which could be judged that
the clutch is slipping, causing idle running and increased oil consumption;
replace clutch pressure plate and driven disk;
Temperature control system
malfunction causing large oil
consumption
For carburetor vehicle in old Geely model, the following malfunctions may
occur: temperature control switch and thermostat are damaged, causing
increased oil consumption as these damages will cause reduced water
temperature, and carburetor cold not work normally, causing poor gasoline
atomization and obviously increased oil consumption; replace it;
Fuel pipe leaking
Check fuel pipe; replace leaking pipe;
Braking seizing
Adjust front and rear braking; if necessary, burnish brake disk;
Oil tank cover not well sealed Poor sealing causes fuel evaporation;
Canister control non-return
valve damaged
Replace it;
During using, oil
consumption of the
engine is a lot
higher than
standard value
Inlet pressure and
temperature sensor damaged
Intake quantity not conforming to standard values, causing error control,
and high oil consumption when the vehicle is driving; check it with computer
diagnosis instrument; if necessary, replace inlet pressure sensor;
Throttle valve position sensor
with broken circuit
Unable to identify opening; replace sensor;
Three-way catalyzer blocked
Cementing within three-way catalyze blocked, with poor exhaust, causing
high oil consumption; replace it;
Inlet pipe leaking
Replace inlet pipe;
Individual cylinders not
working
Check operations of each cylinder; if individual cylinders are poorly
operating, mainly check spark plug, high tension line, cylinder pressure, etc.
Confirm causes and repair or replace;
Incorrect valve timing of the
engine
Check valve timing is correct; if not, adjust it;
Cylinder pressure too low
Measure compression pressure of engine cylinder; if too low, check valve
clearance or remove and repair engine;
Idling speed too large or too Eliminate one by one according to idling speed-related malfunction
79
small
template, making idling speed reach normal state;
Water temperature abnormal
Eliminate one by one according to water temperature-related malfunction
template, making water temperature reach normal state;
80
Drive correctly
Oil consumption too
high
Driving habit problem
Oxygen sensor
malfunction
Clearance of spark plug too
large
Improper ignition timing
Oil ejector obstructed or poor sealing
Cylinder poorly operating
Clean
Repair
Replac
e
Check and
adjust
Adjust
Normal
Poor sealing
Normal
Normal
Normal
Normal
Improper
Too large
Abnormal
Habit problem
Repair