Engine Troubleshooting - Hisun HS294-2 Owner's/Operator's Manual

ENGINE TROUBLESHOOTING

If something is wrong with the engine, refer to the table below for the cause and its corrective
countermeasure.
Trouble
Engine is difficult to start or
cannot start.
Engine power is
insufficient
Engine stops suddenly
Engine overheats
Hitch coupling device
Cause
⚫
No fuel flow
·Water is in the fuel system
⚫
In winter, oil viscosity increases,
and Engine revolution is
slow.
⚫
Battery becomes weak and
the engine does not turn over
quick enough.
⚫
Insufficient fuel.
⚫
The injector is clogged.
⚫
Crankshaft position sensor is
bad.
⚫
The air cleaner is clogged.
⚫
Spark plug is dirty or fouled.
⚫
Ignition coil is bad.
⚫
Check with the diagnostic
instrument (Motor
KF90121 ).
⚫
Engine overloaded
⚫
Low coolant level.
12-104
Countermeasure
⚫
Check the fuel tank and fuel filter
。
⚫
Check the electric fuel pump.
⚫
Check the injector.
⚫
Check the ECU with Motor Scan
KF90121.
⚫
Replace filter electric fuel pump
injector and ECU If necessary.
⚫
Check to see if the fuel tank
cover is tight.
⚫
Use oils of different viscosities,
depending
temperatures.
⚫
Clean battery cables and terminals.
⚫
Charge the battery.
⚫
In cold weather (-15℃), always
remove the battery from the vehicle,
charge and store it indoors.
install it on the vehicle only when
the vehicle is going to be used。
⚫
Check the fuel system.
⚫
Clean or replace the injector.
⚫
Replace crankshaft position sensor.
⚫
Clean or replace the air cleaner.
⚫
Clean or replace the spark plug.
⚫
Replace the ignition coil.
Scan
⚫
Shift to lower gear or reduce
load.
⚫
Fill cooling system to the correct
level;
⚫
Check radiator and hoses for
on ambient