Q: Why won't my car start after replacing fuel pump

Hi there. In general, when an engine just ’clicks’ when you turn the key, it’s due to an electrical relay that is damaged, battery or battery cables that are worn out or broken or a broken fuse. Any or many of these systems could be the reason why your car won’t start after completing a fuel pump replacement; especially if the car battery cables were not removed prior to the removal of electrical wires powering the fuel pump. You might want to have a professional mechanic come to your location tocomplete a car is hard to start inspection，因此他们可以隔离您的问题的根源，并推荐正确的维修。