* Clogged fuel filter: If the fuel filter is clogged, it can restrict the flow of fuel to the engine.
* Symptoms of a clogged fuel filter include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
* Faulty fuel pump: The fuel pump is responsible for delivering fuel from the tank to the engine.
* Symptoms of a faulty fuel pump include:
- Engine stalling or hesitating
- Jerking or rough running
- Inability to start the engine
* Leaking fuel injector: A leaking fuel injector can cause too much fuel to be delivered to the engine, resulting in a rich mixture.
* Symptoms of leaking fuel injectors include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Strong fuel odor
- Check engine light on
Air Intake System Issues
* Clogged air filter: If the air filter is clogged, it can restrict the flow of air to the engine.
* Symptoms of a clogged air filter include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
* Faulty mass air flow (MAF) sensor: The MAF sensor measures the amount of air entering the engine. If the MAF sensor is faulty, it can send incorrect signals to the engine control unit (ECU), which can lead to a rich or lean mixture.
* Symptoms of a faulty MAF sensor include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Check engine light on
Ignition System Issues
* Faulty spark plugs: Spark plugs deliver the electrical spark that ignites the fuel in the engine. If the spark plugs are faulty, they can prevent the fuel from igniting, resulting in a no-start condition.
* Symptoms of faulty spark plugs include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Difficulty starting the engine
- Check engine light on
* Faulty ignition coil: The ignition coil provides the electrical current that powers the spark plugs. If the ignition coil is faulty, it can prevent the spark plugs from firing, resulting in a no-start condition.
* Symptoms of a faulty ignition coil include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Difficulty starting the engine
- Check engine light on
Other Issues
* Low fuel pressure: If the fuel pressure is too low, it can prevent the fuel from being properly delivered to the engine.
* Symptoms of low fuel pressure include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Inability to start the engine
* Faulty oxygen sensor: The oxygen sensor measures the amount of oxygen in the exhaust gas. If the oxygen sensor is faulty, it can send incorrect signals to the ECU, which can result in a rich or lean mixture.
Symptoms of a faulty oxygen sensor include:
- Engine stalling or hesitating
- Jerking or rough running
- Decreased fuel efficiency
- Check engine light on
