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Why is there air pressure in the car fuel tank?

1 Answers

AlanFitz

07/29/25 4:48pm

The reasons for air pressure in the car fuel tank are as follows: 1. Blockage of the fuel tank cap regulator valve can cause high internal pressure in the fuel tank. 2. Blockage of the vehicle's carbon canister valve occurs due to fuel vapor entering the carbon canister. 3. Damage to the vehicle's solenoid valve results in the inability to properly ventilate, forming a closed loop. Solutions for air pressure in the car fuel tank are as follows: 1. The carbon canister in the vehicle's fuel tank helps maintain pressure balance between the inside and outside of the tank. 2. When issues arise with the vehicle's fuel tank, inspect the carbon canister inside the tank to check for any damage. 3. The carbon canister can be inspected or repaired, and the problem will be resolved after repair, allowing the vehicle to function normally.

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