Hyundai Tucson: Engine Overheat/ Troubleshooting
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Mechanical System / Cooling System / Engine Overheat/
Troubleshooting
Components
- Water pipe
- Water hose
- Integrated thermal management module (ITM)
- Heater pipe
- Turbo charger coolant hose
- Heater hose
- Heater pipe A
- Heater pipe A gasket
- Oil cooler hose A
- Oil cooler pipe
- Oil cooler hose B
- Water inlet fitting
- Water inlet fitting O-ring
Engine Overheat/ Troubleshooting
Visual inspection
Inspection/ Remedy
- Inspect for shortage of coolant in reservoir tank ./ Reinspect after replenishing coolant.
- Inspect for coolant pollution after removing radiator cap.
WARNING
Be careful when removing radiator cap from overheated vehicle. / Reinspect after replacing coolant.
- Inspect for leakage and loose coolant hoses (radiator hose, heater hose, oil cooler hose, etc.)./ Reinspect for leakage after reinstalling hoses and clamps.
- Checking for coolant leaks of Integrated Thermal Management Module (ITM)/ Replace O-ring or replace the integrated thermal management module (ITM) if required
- Inspecting the heater pipe connection to find coolant leaks./ Reinspect for leakage after reinstalling hoses and clamps.
- Inspect for leakage on water inlet fitting mounting part./
- Reinspect for leakage after replacing Oring.
- Reinspect for leakage after tightening to the specified torque.
- Inspect drive belt (for normal operation of water pump)./ Adjust drive belt tension or replace.
- Inspect for leakage on water pump gasket mounting part./
- Reinspect for leakage after replacing gasket.
- Reinspect for leakage after tightening to the specified torque.
- Inspect for loose coolant temperature sensor, cooling fan connector and pin/
- Reinstall loose connector.
- Replace relevant part if connector pin is damaged.
- Inspect operation status of cooling fan.
Check operation status by switching ON/OFF the heater control A/C.
WARNING
Will not operate in cold ambient temperature./ Check mounting status of ground cable.
Diagnostic device
Inspection/ Remedy
- Inspect self-diagnostic code using diagnostic tool./ Check coolant temperature sensor, wiring, connector, etc.
Unit inspection
Inspection/ Remedy
- Inspect water pump impeller./ Replace water pump.
READ NEXT:
Replacement and Air Bleeding
WARNING
Never remove the reservoir tank cap when the engine is hot. Serious
scalding could be caused by hot fluid under high
pressure escaping from the radiator.
WARNING
When pouring engine coolant, be sure to shut the relay box lid
and n
Cooling Fan Assembly
Components
Cooling fan
Fan motor
Cooling fan shroud
Cooling Fan Assembly
Disconnect the negative battery terminal.
Remove the radiator.
(Refer to Cooling System - "Radiator")
Remove the cooling fan (A) from the rad
Fan motor
Turn ignition switch "OFF" and connect the diagnostic tool to the Data
Link Connector.
With the gear shift in P (Park) position and ignistion switch "ON" (LED
of the Power button illuminates in Red), select the "fo
SEE MORE:
General Information
Troubleshooting
Wheel and tire diagnosis
Rapid wear at the center
Center-tread down to fabric due to
excessive over inflated tires
Lack of rotation
Excessive toe on drive wheels
Heavy acceleration on drive
Rapid wear at both sh
Indicators And Gauges
Troubleshooting
Description
Cluster Variant Coding
As we have more options (SCC, VDC, EPB, Cubis, MDPS, TPMS. LDWS, ECS -) in
the car, the
dashboard now has more information to display depending on the chosen options.
For this reason, we
Information
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