Why is there a gasoline smell inside the car?
2 Answers
Reasons for gasoline smell inside the car: 1. Aging rubber pipes of the gasoline purification carbon canister (needs replacement) In older cars, rubber components in the engine compartment are prone to aging. The rubber pipes connecting the carbon canister to the throttle body may leak into the engine compartment if they age and need timely replacement. 2. Leakage at gasoline pipe joints (needs tightening/repair) If there's a leak in the gasoline pipe, the smell may enter the car through the air conditioning system. Leaks usually occur at pipe joints and can be visually inspected by opening the engine compartment hood. Over time, a layer of oily residue will appear on the surface if there's a leak. Tightening or repair is necessary. 3. Poor sealing after disassembling the fuel pump (needs repair) Some car owners might replace or disassemble the fuel pump, and the gasoline smell could be due to residual substances not being cleaned properly afterward. It's best to have a repair shop check if the fuel pump is installed correctly. Generally, disassembling the fuel pump is only necessary when replacing it or addressing related malfunctions. 4. Overfilling the fuel tank Overfilling the fuel tank can easily cause a gasoline smell inside the car. If gasoline enters the pipes of the activated carbon canister system, these liquid fuels not only harm the carbon canister itself but can also flow into the intake manifold, causing the spark plugs to "flood," leading to serious consequences like the car stalling after refueling or failing to start.
I've recently been noticing a strong gasoline smell in my car while driving, especially when accelerating, turning, or after parking. I've encountered similar situations before, mainly due to a loose fuel tank cap allowing gasoline vapors to seep in, or minor leaks in the fuel pump or fuel lines. One summer, after parking under the sun, the smell became particularly intense. Upon inspection, I found that the fuel tank sealing ring had aged and developed cracks. Gasoline fumes are not only unpleasant but also extremely dangerous as they're highly flammable. I immediately turned off the engine, ventilated the car, and drove to a repair shop to replace the faulty parts. Now, I make it a habit to regularly maintain and inspect the fuel system to prevent minor issues from turning into major repairs. Driving safety comes first, and it's crucial to address such odors promptly—never ignore them.
