1. Rough idling: This is a common sign of a faulty fuel injector. If your car's engine is idling rough or is shaking excessively, it could be due to a fuel injector that is not working properly.
2. Hesitation or stumbling during acceleration: If your car hesitates or stumbles when you accelerate, it could be a sign that one or more fuel injectors are clogged or faulty.
3. Decreased fuel efficiency: If you notice that your car is consuming more fuel than usual, it could be due to a faulty fuel injector that is not properly atomizing the fuel.
4. Knocking or pinging sounds from the engine: If you hear knocking or pinging sounds coming from the engine, it could be a sign that the fuel injectors are not delivering the correct amount of fuel, causing the engine to run lean.
5. Backfiring: This is a rare but noticeable sign of a faulty fuel injector. It happens when unburned fuel ignites in the exhaust system, causing a loud popping sound.
6. Check engine light: If the check engine light on your dashboard illuminates, it could be an indication of a problem with one or more fuel injectors. It's recommended to have your vehicle diagnosed by a qualified mechanic if the check engine light turns on.
It's worth noting that these signs can also be symptoms of other issues, so it's important to have your car diagnosed by a qualified mechanic to confirm if a fuel injector replacement is necessary.
