What Causes a Car to Suddenly Fail to Accelerate?

[DiAaliyah]

The reasons why a car suddenly fails to accelerate are as follows: 1. Fuel line blockage: First, check if the fuel filter is clogged, whether the fuel pump pressure is sufficient, and if the fuel injector is blocked. 2. Exhaust system blockage: Inspect the three-way catalytic converter and the entire exhaust pipe for any blockages. 3. Excessive carbon buildup in the throttle body, or damage to the idle position sensor and air flow meter. Additional relevant information: When experiencing normal driving without acceleration, it is recommended to visit a 4S shop for computer diagnostics to identify the fault storage code. If the issue is not related to the electrical components, it may be due to mechanical reasons, which can be diagnosed and repaired by professional mechanics. 4S shops have specialized equipment for this purpose.