2017 Hyundai Tucson Engine Problems, Symptoms, Causes and How to Fix

The 2017 Hyundai Tucson has been plagued by engine issues, including excessive oil consumption, stalling, and power loss. Common causes are faulty rod bearings and transmission problems leading to unresponsive acceleration and slipping gears. To address these, Hyundai has issued recalls for engine replacements and software updates. Owners should ensure all recalls are completed and maintain regular vehicle checks. If problems persist, contacting Hyundai for further assistance or warranty claims is advisable.

Symptoms

• Rough Idling: The engine may run unevenly or stall at idle.
• Stalling: There are reports of the engine stalling while driving, particularly when the vehicle is under stress, such as driving uphill.
• Decreased Fuel Efficiency: Owners have noticed a reduction in miles per gallon, indicating the engine is not running as efficiently as it should.
• Loss of Power: The vehicle may lose power, especially noticeable when trying to accelerate or climb hills.
• Knocking Sounds: A knocking noise from the engine compartment has been reported, which could indicate bearing wear or other internal issues.
• Gray Smoke: Emission of gray smoke from the engine area, suggesting oil burning or other combustion problems.
• Oil Consumption: Excessive oil consumption has been noted, requiring more frequent oil changes than normal.
• Check Engine Light: The illumination of the check engine light can indicate various engine issues, including sensor failures or more severe mechanical faults.

Potential Causes

1. Faulty Dual-Clutch Transmission: The Tucson’s dual-clutch transmission has been reported to cause unresponsive acceleration, slipping gears, and jerking movements. This issue is due to defects in the transmission control module, which misinterprets data from the vehicle’s sensors, leading to incorrect gear engagement and shift timing.
2. Excessive Oil Consumption: One of the most common engine problems for the 2017 Tucson is excessive oil consumption, which can lead to low oil levels and pressure, blue smoke, and a burnt smell. In severe cases, this issue has caused the engine to seize.
3. Premature Engine Bearing Wear: The Tucson has been affected by premature wear of engine bearings, particularly the rod bearings. This wear can lead to engine stalling, knocking sounds, and excessive vibration. In some cases, a worn bearing could lead to a connecting rod puncturing the engine block, potentially causing oil leaks and increasing the risk of an engine fire.
4. Defective Engine Components: Specific components like the intake valve and cylinder head have been reported to fail prematurely. For instance, one owner reported a replaced intake valve due to zero compression in a cylinder, which was initially thought to be causing oil consumption.
5. Software Issues: There have been instances where software problems in the engine control system were detected, leading to reduced vehicle performance. These issues were addressed temporarily with software updates.
6. General Engine Design Flaws: The Theta II, Nu GDI, and Gamma GDI engines used in Hyundai and Kia vehicles, including the Tucson, have been prone to various defects that increase the risk of engine fires. These include issues with the connecting rod bearings and other critical engine components.

How to Diagnose 2017 Hyundai Tucson Engine Problems

To diagnose engine problems in a 2017 Hyundai Tucson, follow these steps:

1. Check Engine Light Diagnosis: Begin by checking if the check engine light is on. If it is, use an OBD-II scanner to read the diagnostic trouble codes (DTCs) stored in the vehicle’s computer system. These codes will provide initial clues about the malfunction.
2. Visual Inspection: Conduct a thorough visual inspection of the engine compartment. Look for any signs of oil leaks, damaged components, or unusual wear. Check the oil level and condition, as low or dirty oil can lead to engine problems.
3. Listen for Unusual Noises: Start the engine and listen for any knocking, hissing, or popping sounds. These noises can indicate issues such as bearing wear, misfires, or exhaust system problems.
4. Performance Checks: Monitor the engine’s performance while driving. Pay attention to symptoms like hesitation, rough idling, stalling, and loss of power. These issues can be linked to faulty sensors, fuel system problems, or transmission issues.
5. Oil Consumption Test: If excessive oil consumption is suspected, perform an oil consumption test. Measure the amount of oil used over a set number of miles to determine if the consumption is within the manufacturer’s specifications.
6. Check for Recalls and Technical Service Bulletins (TSBs): Verify if there are any recalls or TSBs issued for the 2017 Tucson that might relate to the symptoms observed. Recalls and TSBs can provide guidance on known issues and recommended repairs.
7. Professional Diagnostic Testing: If the problem is not evident after preliminary checks, consider taking the vehicle to a certified mechanic or a Hyundai dealership for a comprehensive diagnostic test.
8. Review Maintenance History: Examine the vehicle’s maintenance records to ensure that all recommended services, such as oil changes and filter replacements, have been performed on schedule.

How to Fix 2017 Hyundai Tucson Engine Problems – Step by step

To fix engine problems in a 2017 Hyundai Tucson, follow these step-by-step instructions:

Step 1: Diagnose the Problem

• Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) if the check engine light is on.
• Perform a visual inspection for any obvious issues like oil leaks, damaged components, or unusual wear.
• Listen for abnormal noises such as knocking or ticking, which could indicate mechanical issues.

Step 2: Address Specific Issues

• For Starting Issues: Check the battery connections and starter wiring. A loose starter wire can prevent the car from cranking.
• For Oil Consumption and Knocking: If there’s excessive oil consumption or engine knocking, check if there’s a recall related to the rod bearings or other components.
• For Non-starting After Stopping: This could be related to a faulty sensor or electrical issue. Ensure all sensors, including the air mass sensor, are functioning correctly.

Step 3: Check for Recalls and Service Bulletins

• Verify if there are any active recalls or Technical Service Bulletins (TSBs) for your specific model that could address your issue. Hyundai has been known to issue recalls for engine problems.

Step 4: Regular Maintenance

• Ensure regular maintenance such as oil changes, filter replacements, and inspections are up to date.

Step 5: Professional Help

• If you are unable to diagnose or fix the issue yourself, take the vehicle to a certified Hyundai dealership or a trusted mechanic for a comprehensive diagnosis and repair.

Step 6: Consider Engine Replacement if Necessary

• In cases of severe engine damage, such as a seized engine or extensive internal damage, consider replacing the engine. Depending on the situation, a used engine might be a cost-effective solution.

Step 7: Follow Up

• After any repairs or replacements, monitor the vehicle closely to ensure that the issue is resolved. Look for any recurrence of symptoms and ensure that the vehicle is performing as expected.

Repairing 2017 Hyundai Tucson Engine Problems: DIY or Professional Help?

When considering whether to address 2017 Hyundai Tucson engine problems through DIY methods or professional help, it’s important to evaluate the nature of the issues, your own technical skills, and the potential risks involved:

DIY Repair Considerations

• Cost Savings: Handling repairs yourself can save on labor costs.
• Educational Value: You gain more understanding and experience with your vehicle’s mechanics.
• Complexity of Engine Issues: The Tucson has known issues like excessive oil consumption, stalling, and knocking, which can be complex and involve critical engine components.
• Specialized Tools and Skills: Some repairs may require specific tools and advanced mechanical knowledge that typical DIYers might not have.
• Risk of Incorrect Repairs: Mistakes in DIY repairs can lead to further damage or void warranties.

Professional Repair Considerations

• Expertise: Professionals have the specific training and tools to diagnose and fix issues accurately.
• Warranty and Recall Compliance: Dealerships will handle recalls and warranty repairs at no extra cost, ensuring the vehicle remains compliant with safety standards.
• Time Efficiency: A professional can complete the job faster due to their experience and resources.
• Higher Cost: Professional services can be more expensive due to labor costs.
• Dependence on Scheduling: You might have to work around the service center’s schedule, which can be inconvenient.

2017 Hyundai Tucson Engine Problems Repairing Cost

Professional Repair Costs:

• For severe issues like a blown engine, replacement costs can be quite high. One owner was quoted $10,000 by a mechanic and $11,500 by a Hyundai dealership for a complete engine replacement.
• Another source mentioned that replacing the engine with a used one from a wrecked Tucson could cost about $10,000, including markup, labor, parts, and fluids.
• General diagnostic costs for a Hyundai Tucson range between $88 and $111, which does not include any subsequent repairs.

Recall and Warranty Considerations:

• It’s important to check if the vehicle is covered under any recalls or warranties that could offset repair costs. Hyundai has issued recalls for certain engine issues, which might cover some or all of the repair costs.

Additional Costs:

• In cases where the engine needs to be replaced, there might be additional costs for related parts and services, such as replacing hoses, belts, and cleaning injectors, which one owner was quoted an extra $1,000.

Preventing Future 2017 Hyundai Tucson Engine Problems

1. Regular Maintenance: Adhere to the Hyundai Tucson’s maintenance schedule, which includes oil and filter changes every 7,500 miles or 12 months, whichever comes first. Regular maintenance is crucial for identifying and addressing potential issues before they become serious.
2. Address Recalls Promptly: Stay informed about any recalls affecting the 2017 Hyundai Tucson. For instance, there have been recalls related to the engine’s connecting rod bearings and the anti-lock brake system that could lead to engine fires. Owners should ensure that all recall-related repairs are completed promptly.
3. Monitor Oil Levels and Quality: Given the issues with excessive oil consumption, owners should regularly check their oil levels and change the oil as needed. If the vehicle is consuming oil unusually quickly, this should be addressed as soon as possible to avoid engine damage.
4. Use High-Quality Fuel and Oil: Utilize top-tier detergent gasoline and high-quality oil to help keep the engine clean and functioning properly. This can help reduce the buildup of deposits and prevent issues related to fuel and oil contamination.
5. Be Proactive with Symptoms: If symptoms such as engine knocking, stalling, or excessive oil consumption occur, do not ignore them. These could be signs of more significant issues. Early diagnosis and repair can prevent more extensive damage.
6. Seek Professional Diagnostics: If unsure about a particular symptom or if the engine is behaving unusually, consult with a professional mechanic or a Hyundai dealership. Professional diagnostics can identify issues that may not be apparent to the average car owner.
7. Keep Detailed Maintenance Records: Maintain thorough records of all maintenance and repairs. This documentation can be crucial if warranty service is needed and can also be helpful if selling the vehicle.
8. Stay Informed About Common Issues: Regularly check forums, websites, and other resources for any new information about common issues with the 2017 Hyundai Tucson. Being informed can help you anticipate and mitigate potential problems.

Can I drive my 2017 Hyundai Elantra with a transmission problem?

No, you shouldn’t drive your 2017 Hyundai Tucson with a transmission problem. The issues such as delayed gear shifts, the car not moving when shifted into drive, and problems with manual gear selection, suggest that the transmission may not be operating correctly. These problems can potentially worsen while driving, which could lead to unsafe driving conditions or further damage to the vehicle.