2014 Hyundai Tucson GLS FWD – Workshop Service & Repair Manual

Engine problems can range from stalling to misfires. Here's a step-by-step guide to troubleshoot common engine issues:

1. Check Engine Light: Use an OBD-II scanner to read any diagnostic trouble codes (DTCs). This can give you a clue about the problem.
2. Inspect Spark Plugs: Remove and examine the spark plugs. Replace them if they are worn or damaged.
3. Verify Fuel Supply: Ensure the fuel pump is working and the fuel filter is clean. Replace the fuel filter if necessary.
4. Check for Leaks: Inspect the engine for any oil or coolant leaks.

Test Battery and Alternator: Make sure the battery is charged and the alternator is functioning properly.

such as climate controls or infotainment systems can malfunction. Follow these steps to address common issues:

1. Reset the System: Sometimes, a simple reset of the infotainment system or climate control unit can resolve issues. Check the owner’s manual for reset procedures.
2. Inspect Fuses: Check the fuse box for any blown fuses related to interior accessories. Replace any faulty fuses.
3. Check Connections: Ensure all electrical connections to the accessories are secure.

Update Software: For modern systems, ensure the software is up to date. Follow manufacturer instructions for updates.

Transmission issues can cause shifting problems or unusual noises. Here’s how to address them:

1. Check Transmission Fluid: Ensure the fluid is at the correct level and is in good condition. Replace if necessary.
2. Inspect for Leaks: Look for any transmission fluid leaks underneath the vehicle.
3. Check Transmission Filter: A clogged filter can cause shifting issues. Replace the filter if it appears dirty.

Run Diagnostic Tests: Use a diagnostic tool to check for any transmission-related trouble codes.

Electrical issues can affect various systems in your vehicle. Here’s a step-by-step approach:

1. Check Battery Connections: Ensure that battery terminals are clean and tightly connected.
2. Inspect Fuses and Relays: Check the fuse box for any blown fuses or faulty relays and replace them as needed.
3. Test Electrical Components: Use a multimeter to test electrical components such as lights, switches, and sensors.

Examine Wiring: Look for damaged or frayed wires in the affected circuits.

Brake issues can be critical for vehicle safety. Here’s how to handle common brake problems:

1. Check Brake Fluid Level: Ensure the brake fluid is at the recommended level and in good condition. Top up or replace if necessary.
2. Inspect Brake Pads: Examine the brake pads for wear. Replace them if they are too thin.
3. Check for Leaks: Look for any brake fluid leaks in the brake lines or calipers.

Test Brake System: If you hear unusual noises or experience reduced braking performance, have the brake system inspected by a professional.