The function of the fuel injector in your Mercedes Sprinter is to supply fuel to the engine. The fuel injector injects fuel to the engine cylinder with a nozzle in order for the internal combustion process in the engine to commence. It is important for the fuel to be supplied at the right time, in the correct amount, and at the right pressure.
The fuel injector is managed by the Engine Control Unit (ECU) which acts as a control center for several components in the vehicle. The ECU ensures that the fuel injector sprays the right amount of fuel at the right time so that the correct amount of air/fuel mixture is gotten.
When the fuel injector clogs, fuel will not be supplied to the engine. This will affect the functioning of the engine and your Sprinter as a whole.
Signs of a Clogged Fuel Injector
The following are some of the signs that your Mercedes Sprinter has a clogged or faulty fuel injector:
- Rough Idle or Engine Stalls: When your vehicle does not get sufficient fuel supply, the engine RPM when idling goes below the optimal level. This causes a violent or rough idle. At a lower RPM, your Sprinter stalls and needs restarting.
- Engine Vibrates: When the fuel injector of your Sprinter is faulty, the cylinder experiences difficulties in firing. What this implies is that the engine of your Sprinter vibrates after completing the four strokes without fuel.
- Engine Misfires: Your Sprinter’s engine misfires when it does not receive enough fuel because of a clogged injector. The effect of this is that your Sprinter experiences difficulties when you accelerate. Sometimes, there may be a pause when you press the gas pedal. It is important to do something about this problem immediately to avoid overheating or problems arising from improper air/fuel mix.
- Check Engine Light Turns On: This is an obvious tell-tale sign of a clogged fuel injector. However, because the check engine light could signify other underlying problems it is important to take your Mercedes Sprinter to a professional for diagnosis.
- Fuel Leak: A broken, damaged or old fuel injector would cause a fuel leak. The fuel would leak out and would not get to the nozzle as it should. Inspecting the fuel injector would help you diagnose the problem. Sometimes, the leak can be as a result of a deteriorated seal of the fuel injector over time.
- Fuel Odor: When the fuel in your Mercedes is not burned as it should be because of a faulty fuel injector, you will definitely perceive fuel.
- Engine Surge: When the fuel injector sprays excess fuel into the cylinder, there will be a surge in the engine which may reduce the acceleration. This is why when you are driving your Mercedes Sprinter, the engine revolution per minute would change.
- Bad Fuel Economy: When the engine is not supplied with a sufficient amount of fuel needed for combustion, there will be pressure on the injector to supply more fuel. This will cause bad fuel economy as your Mercedes Sprinter onboard computer will think more fuel is needed.
- Failed Emissions Test: A clogged, leaking or broken fuel injector will prevent the fuel from burning completely. This will increase the emission released from your car. When the emission released from your Mercedes is high, your car will fail an emission test.
Bring Your Sprinter to The Benz Shop!
When you experience any of the signs above, it is important to bring your Mercedes Sprinter to The Benz shop for certified mechanics to diagnose and repair it. We are located in Glendale and can be easily accessed by car owners in Scottsdale, Glendale, Tempe, Chandler, Paradise Valley, and Phoenix, AZ.
We are experienced in providing top-notch maintenance service for all Mercedes customers. We have ASE-certified technicians with the experience to service the make and model of your Mercedes. We make use of the best factory-grade tools, equipment, and OEM parts to ensure your car is serviced just as it would be at the dealership. Contact us at (480) 867-6695 or visit us at 5160 West Phelps Road, Suite A, in Glendale, AZ! We look forward to earning your business!
* Mercedes Benz Sprinter image credit goes to: Srdjanns74.