What are the symptoms of a damaged ignition coil in a Focus?
2 Answers
The symptoms of a damaged ignition coil in a Focus include: 1. Noticeable body shaking when idling; 2. Lack of power during acceleration when the engine speed is below 2500 rpm while driving; 3. Obvious engine shaking when observing the running engine with the hood open. The Focus is a compact car with body dimensions of 4647mm in length, 1810mm in width, and 1468mm in height. In terms of power, the Focus is equipped with two engines: a 1.0T and a 1.5T. The 1.0T engine has a maximum power output of 94kw, while the 1.5T engine has a maximum power output of 135kw. The transmission system of the Focus features an 8-speed automatic transmission matched to the engine.
I've been driving a Focus for almost ten years and have encountered ignition coil failures two or three times, which is quite common. The car would suddenly start shaking while driving, as if on a bumpy road. In severe cases, the entire car would vibrate, and the idle speed would become unstable—when parked, the tachometer needle would jump back and forth. Acceleration noticeably weakened, throttle response became sluggish, and fuel consumption increased. Last time I drove around the city, the gauge showed an extra liter of fuel burned. The yellow light on the dashboard also came on, which I think was the engine fault light. I've also experienced difficulty starting after rainy days, having to turn the key several times before the engine would fire. These are all classic symptoms. If not repaired promptly, it could damage other components like spark plugs or the exhaust system, costing even more money. Pay attention to these signs while driving and get it checked early to save trouble.
