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2018 HYUNDAI Sonata
Vehicle Summary
The 2018 Hyundai Sonata is a well-equipped passenger car featuring a 2.4L GDI THETA-II engine with 187 hp. It offers a comfortable seating capacity for five people and comes with standard safety features like Blind Spot Warning, Anti-lock Braking System, and a Backup Camera. Available trims include SEL, Limited, and Sport variants, with options for advanced safety systems like Adaptive Cruise Control and Lane Departure Warning. Built in Montgomery, Alabama, this left-hand drive sedan provides a smooth driving experience with front-wheel drive and a base price of $23,700.
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2018 HYUNDAI Sonata
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Complete Specifications
Known Issues for This Vehicle
Engine knocking
The Hyundai Sonata with the GDI THETA-II engine has been reported to experience knocking noises due to carbon buildup on the intake valves, which can lead to pre-detonation.
Oil consumption
The GDI THETA-II engine is known to consume more oil than expected, which may be due to faulty piston rings or valve seals.
Engine stalling
Some users have reported stalling issues, which can be attributed to problems with the fuel injection system or a faulty crankshaft position sensor.
Coolant leaks
This engine model has been known to develop coolant leaks, often due to a failing water pump or a compromised head gasket.
Timing chain issues
The timing chain tensioner may fail prematurely, leading to timing chain rattle or even more severe engine damage if not addressed promptly.
Fuel pump failure
High-pressure fuel pumps in the GDI system can fail, leading to reduced engine performance and potential stalling.
Carbon buildup
Direct injection engines like the GDI THETA-II are prone to carbon buildup on intake valves, which can affect airflow and engine efficiency.
