What Causes the Smell of Gasoline After Starting the Car?

1 Answers
DelAlex
07/30/25 2:07am
The reasons for the smell of gasoline after starting the car are: 1. The rubber hose of the carbon canister has aged and developed leaks, allowing gasoline vapor to enter the intake manifold through the hose; 2. There is a leak in the fuel line, and the gasoline odor enters the car through the air conditioning system; 3. Residual gasoline from the fuel pump during disassembly or installation; 4. The gasket inside the fuel tank cap has aged or is uneven; 5. The fuel injector and throttle body have accumulated dirt due to long-term lack of cleaning, leading to incomplete combustion of gasoline. Solutions for strong gasoline odor inside the car: 1. Replace the aging rubber hoses; 2. Tighten or repair the leaking fuel lines; 3. Adjust the air conditioning circulation mode to external circulation; 4. Clean the fuel injector and throttle body.
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