Lexus LX570 strong fuel smell after an hour of operation in hot weather, dealerships unable to identify issue on Lexus LX570

Some Lexus LX570 owners report experiencing a strong fuel smell after an hour of operation in hot weather, which can be attributed to several potential issues. These include serious concerns such as fuel leaks that require immediate attention, as they can lead to hazardous conditions inside the vehicle. Additionally, owners with aftermarket modifications, like long-range fuel tanks, may find these alterations contribute to the fuel odor. A faulty or missing gas cap is another common culprit, as it can allow gas fumes to escape if not properly sealed. Furthermore, issues with the air intake system, including clogged air filters or faulty oxygen sensors, can cause the fuel-air mixture to become overly rich, resulting in a pronounced gas smell. To resolve these issues, it is advisable for owners to conduct a thorough inspection for fuel leaks, check the gas cap's condition, consider reverting any modifications, and assess the air intake system. If dealerships are unable to pinpoint the problem, consulting a specialized mechanic experienced with Lexus vehicles may provide a more comprehensive diagnosis.