Q: My car keeps jerking & making a noise.

Hi there. Typically when your car will stumble or jerks while you are driving or accelerating, it is caused by a fuel system restriction or ignition system components that are worn out and having a hard time igniting the fuel inside the combustion chamber. In most cases, this is due to fuel injectors or the throttle body being clogged by excessive carbon deposits or a mass air flow sensor that is damaged. It can also be caused by worn out spark plugs or spark plug wires. It is probably a good idea to have a professional mobile mechanic come to your location andcomplete a car is slow to accelerate inspection。这将使他们能够隔离问题的来源，并建议进行正确的维修。