What is the reason for the smell of gasoline in the car?

The reasons for the smell of gasoline in the car are: the aging of the rubber tube of the carbon canister, the oil leakage of the gasoline tube, the overfilling of the gasoline pump after disassembly and refueling, and the aging of the oil circuit.

1, aging of rubber pipe of carbon canister

The connection between the carbon canister and the throttle valve is made of rubber pipe, which may leak once it ages. Solution: Replace related aging hoses.

2. The gasoline pipe leaks oil.

The leakage of gasoline pipeline generally occurs at the interface between pipelines. When the engine compartment cover is opened, it can be visually judged that if there is leakage at the interface, after a period of time, dust will be adsorbed on its surface to form sludge. Solution Fasten, repair the interface and replace the gasket.

3. After disassembling the gasoline pump.

Dismantling the gasoline pump needs to be completed in the car, and some oil leakage will inevitably occur during this process, and the replacement cycle of the gasoline pump is about 6,543,800 kilometers, so this situation is not common. Solution Go back to the repair shop to check the installation defects of the gasoline pump.

4. It is caused by excessive refueling.

If gasoline is overfilled, it is possible that gasoline will enter the carbon canister along the pipeline, and the carbon canister originally used to collect gasoline vapor will release excess gasoline vapor from the exhaust port after invading gasoline. When the air conditioner is in the external circulation state, the smell of gasoline will enter the car, which is generally the reason.

5, oil aging phenomenon.

Some oil routes in the car are composed of rubber products, which are fragile products and will age after a certain period of use. The aging of the oil circuit leads to the leakage of gasoline, and the smell of gasoline will spread to the car.