Why does my car engine shake when I start it?
Why does my car engine shake when I start it? The engine may feel like it’s stumbling for a few seconds before regaining pace. This can be caused by an incorrect air/fuel mixture due to a faulty O2 sensor. Alternately, a misfiring cylinder can unbalance the engine, causing a shaking sensation. As the engine misfires and loses power, it may jerk or vibrate aggressively. What are the signs of an engine misfire? However, a misfire will be considered in conjunction with the following signs: 1 Check engine light 2 Engine stalling 3 Rough idle 4 Slow acceleration 5 Excessive fuel...