Page 762 - Foton Workshop Manual - Sauvana
P. 762

16C-2                             COOLING - COOLING SYSTEM

           TABLE OF MALFUNCTION SYMPTOMS

           The table below can help you to rapidly find out the required malfunction information.

             Malfunction              Possible Cause                             Reference
              Symptoms

                             1.Lack of coolant                    Fill up coolant to normal level

                                                                  Check leakage point and replace
                             2.Coolant leakage
                                                                  damaged parts if necessary
                             3.Unnecessary air in cooling pipe    Drain air in cooling system

                             4.Faulty thermostat                  Replace thermostat
                                                                  Check and adjust injector advance angle if
                             5.Noisy engine
                                                                  necessary
               Overheated
             water in engine  6.Poor radiation due to impurities on   Clean exterior impurities
                             heat radiator exterior,
                             7.Poor radiation due to internal     Clean or replace heat radiator
                             blockage

                                                                  Check electronic fan harness or replace
                             8.Electronic fan not working
                                                                  electronic fan
                             9.Blockage in cooling system pipe    Clean or replace pipe

                             10.Damaged coolant filler cap         Replace coolant filler cap
              Cold water in   1.Electronic fan runs frequently    Check electronic fan and harness
                 engine      2.Thermostat is always open          Check or replace thermostat

                             1.Heat radiator leakage              Check or replace heat radiator

                             2.Aged and leaking cooling pipe      Replace cooling pipe
                             3.Loose or leaking water pump        Replace water pump
                             bearing
               Insufficient
             engine coolant  4.Damaged coolant filler cap          Replace coolant filler cap
                             5.Damaged engine cylinder            Replace cylinder gasket
                             gasket

                             6.Leakage in engine cylinder or      Replace plug
                             cylinder head plug
             Strange noise in   1.Faulty electronic fan           Check or replace electronic fan
                 engine      2.Faulty water pump                  Check or replace water pump

                             1.Open-circuit fuse                  Replace fuse

                             2.Faulty relay                       Replace relay
              Electronic fan
               not working   3.Faulty coolant temperature         Replace coolant temperature sensor
                             sensor

                             4.Faulty engine control unit         Check and replace engine control unit



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