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What causes noticeable acceleration jerking in the Mondeo?

2 Answers

McNoah

08/26/25 3:12am

Mondeo generally refers to the Ford Mondeo. On May 11, 2020, the 2020 Changan Ford Mondeo was officially launched, with a total of 4 models available. If the Mondeo experiences jerking, the first step is to check whether the transmission has taken in water; if so, replacing the oil may resolve the issue. Below are some explanations regarding car jerking: 1. Special circumstances: Check if the ignition system has taken in water. Sensors or the intake system may have water ingress, causing the air filter to become wet, which affects the air intake volume and introduces a small amount of water into the intake. 2. Causes: The transmission oil circuit may be blocked or not flowing smoothly. The oil circuit plate may be worn, or the transmission oil may not have been changed for a long time, leading to deterioration and reduced lubrication effectiveness. The transmission filter may be too dirty, reducing its filtering efficiency and allowing wear particles to enter the valve body.

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AthenaRose

09/08/25 3:33am

I also experienced acceleration hesitation when driving my Mondeo. It felt like the car suddenly jerked before surging forward, making the ride very uncomfortable. This is usually related to the transmission, especially clutch wear or control unit failure in dual-clutch transmissions, causing rough gear shifts. Additionally, it could be an issue with the ignition system, such as worn spark plugs or faulty ignition coils, leading to inconsistent ignition timing and intermittent power delivery. Sometimes, a clogged fuel system with carbon buildup in the injectors can cause uneven fuel spray, resulting in similar symptoms. Another possibility is a dirty air filter in the intake system, restricting airflow and making the engine struggle. I personally tried replacing the air filter and using fuel additives to clean the injectors, which improved the situation. If the problem persists, it's advisable to visit a professional workshop for a comprehensive inspection to prevent further damage and ensure safety.

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