Page 293 - Foton Workshop Manual - Sauvana

ENGINE MECHANICAL - ENGINE MECHANICAL 12B-3

Malfunction Possible cause Reference
symptom

The continuous pressure of the oil supply
1.Pressure of sucker<350kPa
system
2.Oil mass in fuel tank is inadequate Refueling

3.Fuel oil filter blockage Replace fuel filter
4.Leakage of oil for the oil inlet pipe of Change the oil inlet pipe of the engine.

The engine the engine
starts but the 5.The control valve of the oil pressure
vehicle fails to on the fuel pump is damaged Change the fuel pump 12B
operate
6.The pressure of the fuel pump is Change the fuel pump
insufficient

Clean the intake duct and replace the air filter
7.Air filter clogging warning
element
8.Ternary catalytic converter is blocked Change ternary catalytic converter
or damaged

1.The lead wire of the spark plug is not Reconnect the connector
in good connection
2.The clearance of the park plug is
Engine is idling incorrect Readjust the clearance of all the park plugs
or unstable
3.The control valve of the oil pressure Change the fuel pump
on the fuel pump is damaged
4.Several fuel injectors are blocked. Clean or replace the fuel injector

1.Oil mass in fuel tank is inadequate Refueling
The engine 2.Leakage of oil for the oil inlet pipe of
flameouts the engine Change sucker
suddenly in
the process 3.There is air in the oil supply system Evacuate the oil supply system
of normal 4.The fuel filter or the oil line are Replace the fuel filter or clean the oil line
operation blocked
5.The fuel is mixed with water Change the fuel

Page 293