Page 470 - Foton Workshop Manual - Auman EST-M

DI - 416 Diagnosis - Mechanical fault diagnosis

Failure phenomenon Possible reason Failure elimination

Current electric error code is current or
Read the error codes and perform service on the
non-current error code high frequency
failures in corresponding with the error codes
counter

Check the air-air cooler, AC condenser and
Air-air cooler radiation fin
radiation fin. Clean them if necessary
Add coolant to the specified height and check if
Coolant level lower than specification
the cooling system leaks

Verify the concentration of anti-freeze fluid in the
Mixing ratio of anti-freezing liquid
coolant Add anti-freezing liquor or water to the
Coolant temperature too high
and water in coolant not correct
correct concentration
The fan shield is broken or missed, or the Check the shield and deflector. If necessary,
air deflector is broken or missed repair, replace or install it
Check the fan drive belt. If necessary, replace the
Fan drive belt broken or loose
belt
Fan drive or control device failure Check the fan drive and control device

Test the thermometer and sensor. If necessary,
Coolant thermometer or sensor failed
repair or replace it

Radiator cover not correct or failed or low
Check the radiator pressure cover
specification in standing pressure

Thermostat broken Replace the thermostat
Cooling system blocked or leaking Check the radiator hose

Filling pipe or degassing pipe blocked, Check if the degassing pipe and filling pipe are
choked or pipeline arrangement not correct arranged correctly and if they are blocked

Check the engine oil level. If necessary, fill in or
Engine oil higher than the requirement
discharge the engine oil
Coolant temperature too high
Cooling system contaminated by dirt, scale
Clean the cooling system
or grease
Refer to engine oil contamination failure
Engine oil contaminated by coolant or fuel
diagnosis

Coolant contaminated by engine oil Refer to engine oil mixed in coolant

Check the cylinder body pressure and replace
Water pump failure
the water pump if necessary

Check the radiator. Clean or replace it if
Radiator core blocked or broken
necessary

DI-416