When you have a faulty fuel injector, your engine may run rough or misfire. This could be accompanied by vibrations that cut across the vehicle from the engine compartment. In some cases, you may also see the engine light come on. While these are some of the most common bad fuel injector symptoms, they are not unique to the problem.
Watch the video below or read our step-by-step guide below where our mechanics show you how to diagnose and fix a bad fuel injector.