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The Hyundai Elantra may experience engine mount issues that result in impact noises and vibrations from the engine bay. Various engine issues may arise, such as spark plug dislodgment and loose gaskets that require tightening. A critical concern is engine overheating, which has the potential to cause car fires and even explosions. Additional problems may include excessive oil consumption, necessitating prompt oil changes, and the need to replace the air filter every 15,000 to 30,000 miles. Coolant replacement is recommended every 60,000 miles, while spark plugs should typically be changed every 100,000 miles unless they are copper plugs, in which case replacement is advised every 30,000 miles or so.
Issues arising with the engine mounts in a 2020 Hyundai Elantra may be due to mechanical breakdown caused by wear and tear or flaws in the manufacturing process.