Fuel System 98 General Information
SYMPTOM TROUBLESHOOTING GUIDE TABLE
(SYMPTOM 1) ENGINE DOES NOT START
•
Faulty starter
•
Not connected fuel feed line
•
Leakage in high pressure fuel circuit
•
Fuse out of order
•
Drift of the rail pressure sensor
•
Cam and crank signals missing simultaneously
•
Low battery voltage
•
Fuel pressure regulator valve contaminated,
stuck, jammed
•
Rail pressure regulator valve contaminated,
stuck, jammed
•
Bad fuel quality or water ingress in fuel
•
Faulty fuel filter
•
Clogged low pressure fuel circuit
•
Clogged fuel filter
•
Intermittent faulty fuel line connection
•
Air ingress in the low pressure fuel circuit
•
Clogged return line of high pressure fuel pump
•
Low compression pressure
•
Leakage at the injector
•
Faulty low pressure fuel pump
•
Faulty high pressure fuel pump
•
Injector jammed open
•
ECM program error or hardware fault
(SYMPTOM 2) ENGINE STARTS WITH DIFFICULTY OR STARTS AND STALLS
•
Not connected fuel return line at injector
•
Leakage in high pressure fuel circuit
•
Fuse out of order
•
Clogged air filter
•
Faulty alternator or voltage regulator
•
Compensation of individual injector not adapted
•
No engine coolant temperature sensor signal
•
No rail pressure sensor signal
•
Low battery voltage
•
Fuel pressure regulator valve contaminated,
stuck, jammed
•
Rail pressure regulator valve contaminated,
stuck, jammed
•
Bad fuel quality or water ingress in fuel
•
Inversion of fuel connections (feed
&
return)
•
Clogged low pressure fuel circuit
•
Clogged fuel filter
•
Oil level too high or too low
•
Intermittent faulty fuel line connection
•
Air ingress in the low pressure fuel circuit
•
Clogged return line of high pressure fuel pump
•
Faulty glow system
•
Low compression pressure
•
Clogged injector return line
•
Carbon deposit on the injector (sealed holes)
•
Injector needle stuck (injection possible over
a certain pressure)
•
Gasoline in fuel
•
ECM program error or hardware fault
(SYMPTOM 3) POOR STARTING WHEN
•
Compensation of individual injector not adapted
•
No rail pressure sensor signal
•
Fuel pressure regulator valve contaminated,
stuck, jammed
•
Rail pressure regulator valve contaminated,
stuck, jammed
•
Clogged air filter
•
Air ingress in the low pressure fuel circuit
•
Bad fuel quality or water ingress in fuel
•
Clogged return line of high pressure fuel pump
•
Clogged fuel filter
•
Low compression pressure
•
Intermittent faulty fuel line connection
•
Carbon deposit on the injector (sealed holes)
Summary of Contents for S220P
Page 3: ...Engine Mechanical System 2 General Information General Information Specifications ...
Page 4: ...Engine Mechanical System 3 General Information Specifications ...
Page 5: ...Engine Mechanical System 4 General Information Specifications ...
Page 10: ...Engine Mechanical System 9 Cooling System Special Service Tools ...
Page 11: ...Engine Mechanical System 10 Cooling System Special Service Tools ...
Page 18: ...Engine Mechanical System 17 Cooling System ...
Page 19: ...Engine Mechanical System 18 Cooling System Thermostat ...
Page 55: ...Engine Mechanical System 54 Lubrication System ...
Page 73: ...Engine Electrical System 72 General Information Troubleshooting Charging system ...
Page 74: ...Engine Electrical System 73 General Information Starting system Special service tools ...
Page 75: ...Engine Electrical System 74 Charging System Charging system Alternator ...
Page 80: ...Engine Electrical System 79 Starting System Components ...
Page 91: ...Fuel System 90 General Information Special Service Tools ...
Page 112: ...Fuel System 111 Diesel Control System EOI Engine Operating Indicator System Circuit Diagram 1 ...
Page 117: ...Fuel System 116 Diesel Control System Specification Circuit Diagram ...