My 2018 Ford Fiesta has developed a slight engine rumble. What could it be?

My 2018 Ford Fiesta has developed a slight rumble from the engine when coming to a stop and the stop-start kicks in. I can feel the vibration when braking. Can you please advise?

Asked on 17 March 2021 by Elaine Moore

Answered by Dan Powell
The vibration could be linked to a faulty spark plug, loose hose or broken engine mount. The most serious concern would be an issue with the timing belt (which can also cause vibration if the belt is loose or misaligned). Whatever the cause, you should get it checked by a professional mechanic.
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