PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IO-G-T-00-001e B
February 2016
GAS ENGINES TROUBLESHOOTING
8/10
SYMPTOM
PROBABLE CAUSE
REMEDY
Low gas pressure
Broken or misadjusted regulator
Readjust or change regulator
Insufficient gas supply pressure
Contact gas supplier
Fuel leaks
Inspect fuel system and repair
Undersized pipelines
Check circuit and make sure pipe diameter is
adequate for the gas quality
Clogged gas filter
Clean or change filtering element
High gas pressure
Broken or misadjusted regulator
Readjust or change regulator
Low water pressure
Damaged or inaccurate pressure gauge
Change or recalibrate
Low coolant level
Refill with coolant
Blocked radiator or heat exchanger
Clean radiator or heat exchanger
Coolant leak
Locate and repair leaking item
Damaged cylinder head gasket
Change gasket
Damaged or defective pump
Repair or change pump
Cavitation
Drain the circuit
High water pressure
Damaged cylinder head gasket
Change gasket
Flow restriction in water system
Check system and change items restricting
flow
High water temperature
Clean heat exchanger or radiator; check fan,
thermostats...
Low water temperature
Thermostats stuck open
Change thermostats
Broken or inaccurate thermometer
Recalibrate or change thermometer
High water temperature
Broken or inaccurate thermometer
Recalibrate or change thermometer
Low coolant level
Refill with coolant
Thermostats stuck closed
Change thermostats
Air bubbles in circuit
Vent the circuit
Overload
Check power signal
Damaged or defective water pump
Repair or change water pump
Water frozen in radiator
Defrost radiator
Damaged cylinder head gasket
Change cylinder head gasket
Late ignition
Re-time
Cracked cylinder head
Change cylinder head
Cracked liner
Change liner
Low water flow
Check system and change items restricting
flow
6.1.8
O&M_2.002211.810_A_10_2016