SEN00458-01 40 Troubleshooting
8 114E-3 Series
*1: Code [559/CA559] and code [2249/CA2249] in E-mode
*2: Code [271/CA271] and code [272/CA272] in E-mode
*3: Code [2265/CA2265] and code [2266/CA2266] in E-mode
b) Engine turns but no exhaust smoke comes out
General causes why engine turns but no exhaust smoke
comes out
q Fuel is not being supplied
q Supply of fuel is extremely small
q Improper selection of fuel (particularly in winter)
Causes
Use of improper fuel
Insufficient fuel in tank
Clogged air breather hole of fuel tank cap
Leaking or clogged fuel piping, entry of air
Clogged fuel filter element
Seized, abnormally worn feed pump
Broken supply pump shaft
Stuck, seized supply pump plunger
Defective supply pump IMV (IMA)
Defective electric lift pump
Defective operation of overflow valve (Does not close)
Defective common rail pressure limiter
Defective fuel injector
Questions
Confirm recent repair history
Degree of use of machine Operated for long period EE
Exhaust smoke suddenly stopped coming out (when starting again) wQww E
Replacement of filters has not been carried out according to Operation and
Maintenance Manual
wE Q
When fuel tank is inspected, it is found to be empty w
Air breather hole of fuel tank cap is clogged Qw
Rust and water are found when fuel tank is drained QE EE
Check items
When fuel filter is removed, there is not fuel in it ww Q
Fuel is leaking from fuel piping w
While engine is cranked with
starting motor,
If air bleeding plug of fuel filter is
removed, fuel does not flow out
QQwQ Q
If spill hose from injector is discon-
nected, little fuel spills
Qwww Q
Troubleshooting
Inspect fuel filter directly q
Inspect feed pump directly q
Carry out troubleshooting according to “No-pressure feed by supply pump
(*1)” in E-mode
qq
Carry out troubleshooting according to “Abnormality in supply pump IMV
(IMA) (*2)” in E-mode
q
Carry out troubleshooting according to “Abnormality in electric lift pump
(*3)” in E-mode
q
Inspect overflow valve directly q
Engine can be started in reduced cylinder mode q
Fuel flows out when pressure limiter return piping is disconnected q
Remedy
Replace
Add
Clean
Correct
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
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