40 Troubleshooting SEN00458-01
114E-3 Series
9
*1: Code [559/CA559] and code [2249/CA2249] in E-mode
*2: Code [2265/CA2265] and code [2266/CA2266] in E-mode
c) Exhaust smoke comes out but engine does not
start (fuel is being injected)
General causes why exhaust smoke comes out but
engine does not start
q Lack of rotating force due to defective electrical
system
q Insufficient supply of fuel
q Insufficient intake of air
q Improper selection of fuel
Causes
Clogged air cleaner element
Worn dynamic valve system
(Valve, rocker lever, etc.)
Worn piston ring, cylinder liner
Use of improper fuel
Clogged air breather hole of fuel tank cap
Leaking or clogged fuel system, entry of air
Clogging of fuel filter
Stuck, seized supply pump plunger
Defective electric lift pump
Clogged injector, defective spray
Defective, deteriorated battery
Defective coolant temperature sensor,
wiring harness
Defective intake air heater system
Questions
Confirm recent repair history
Degree of use of machine Operated for long period EEE
Suddenly failed to start wwQ
Non-specified fuel is being used w QQ
Replacement of filters has not been carried out according to Operation and
Maintenance Manual
ww
Oil must be added more frequently w
When engine is preheated or when temperature is low, preheating monitor
does not indicate normally (if monitor is installed)
w
Dust indicator is red (if indicator is installed) w
Air breather hole of fuel tank cap is clogged Q
Rust and water are found when fuel tank is drained w
When fuel filter is removed, there is not fuel in it wQ
Fuel is leaking from fuel piping w
Starting motor cranks engine slowly w
Check items
When engine is cranked, abnormal sound is generated around cylinder head w
While engine is cranked
with starting motor,
If air bleeding plug of fuel filter is removed, fuel
does not flow out
QwQ
If spill hose from injector is disconnected, little
fuel spills
w
When exhaust manifold is touched immediately after starting engine, temper-
ature of some cylinders is low
w
Troubleshooting
Inspect air cleaner directly q
Inspect dynamic valve system directly q
When compression pressure is measured, it is found to be low q
When air is bled from fuel system, air comes out q
Inspect fuel filter directly q
Carry out troubleshooting according to “No-pressure feed by supply pump
(*1)” in E-mode
q
Carry out troubleshooting according to “Abnormality in electric lift pump (*2)”
in E-mode
q
Engine can be started in reduced cylinder mode q
When specific gravity of electrolyte and voltage of battery are measured,
they are low
q
Coolant temperature gauge does not indicate normally (if coolant tempera-
ture gauge is installed)
q
When starting switch is turned to HEAT, intake air heater mount does not
become warm
q
Remedy
Clean
Replace
Replace
Replace
Clean
Correct
Replace
Replace
Replace
Replace
Replace
Replace
Replace
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