Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Ignition System / Troubleshooting

- Troubleshooting

Trouble symptomProbable causeRemedy
Engine will not start or is hard to
start (Cranks OK)
Ignition lock switchInspect ignition lock switch, or replace as required
Ignition coilInspect ignition coil, or replace as required
Spark plugsInspect spark plugs, or replace as required
Ignition wiring disconnected or brokenRepair wiring, or replace as required
Rough idle or stallsIgnition wiringRepair wiring, or replace as required
Ignition coilInspect ignition coil, or replace as required
Engine hesitates/poor accelerationSpark plugsInspect spark plugs, or replace as required
Ignition wiringRepair wiring, or replace as required

    Description and Operation
    - Description The ignition coil is a kind of small transformer that transforms the battery voltage to 30 kV or more to create a spark in the spark plug gap in the cylinder.The igniter embedded ...

    Schematic Diagrams
    - Schematic Diagrams ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Auto Light Sensor
    - Inspection Check if the auto light control operates like a timing chart shown below.Tail lamp output and head lamp (Low) output is controlled based on the auto light sensor's input (illumination intensity) when the Auto Light Switch in Multi-Function Switch is turned ON, and the vehicle i ...

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Heating and Air Conditioning
    1. Start the engine. 2. Set the mode to the desired position. To improve the effectiveness of heating and cooling, select: - Heating: - Cooling: 3. Set the temperature control to the desired position. 4. Set the air intake control to the outside (fresh) air position. 5. Set the fan ...

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