Leaking injector: symptoms

The injectors are located at the end of the injection circuit. They are the ones that vaporize the fuel in the engine. They are sealed with O-rings that can wear out, especially on diesel engines. Here are the symptoms of a leaking injector and how to fix the problem as quickly as possible.

⚠️ How to recognize a faulty injector?

. injectors of your vehicle are part of the injection system and distribute fuel - gasoline or diesel - to the engine. They usually last the life of your vehicle but are sensitive to dirt and water so Fuel filter.

In addition, the injector has gaskets that can also wear out. This creates a leak at the nozzle level. Here's how to recognize the symptoms of a leaking injector:

• Engine light ignited on the dashboard;
• Difficulty getting started with the engine running;
• Power loss ;
• Engine vibration ;
• Jerks during acceleration ;
• Fuel smell ;
• Fuel traces under the car;
• Black smoke to the exhaust.

Depending on whether the leaking injector is installed on a petrol or diesel vehicle, the source of the leak will not be the same. On a diesel injector, the leak can be located at the inlet to the injector, on the copper seal at the base of the injector, or at toric joint return of the injector.

Leaks are less common on petrol injectors. When they do, they come either from the O-ring that seals the injector to the injection camshaft or from the ring that contacts the bottom of the injector and the engine.

🔍 What are the consequences of a faulty injector?

The injectors are located at the end of the injection circuit. Fuel flows from the tank to injection pumpthrough oil filter... This filters the fuel from any impurities or water that may be there, especially at the bottom of the tank. If it is not changed periodically, residues may remain on it, which will damage the injectors or injection pump.

An injector problem, be it a leak or an HS injector, starts with the impact on the combustion process of your engine. Indeed, it no longer distributes fuel correctly, and the mixture of air and gasoline is no longer in the right amount. Your car can experience power losses, From Wedges even difficulties to start.

Improper fuel injection can also cause excessive consumption of gasoline, exacerbated by leakage when the nozzle seal is faulty.

But a faulty injector can reach breaking piston even the engine myself. The bill then rises sharply as the entire engine block has to be replaced, which costs several thousand euros.

🚗 Can I drive a car with a leaky injector?

A vehicle showing symptoms of a leaky injector should be returned to the garage. Indeed, it is necessary to replace the injector or its seal before the leak causes a more serious problem. Your vehicle will experience misfiring and fuel consumption problems, but a leaky injector can damage other parts in the vicinity.

The cost of replacing an injector is very high. It really needs to be counted from 1500 to 3000 € change all injectors. The score can increase even more if you continue driving with a leaky injector. On the other hand, replacing the single injector gasket that caused the leak is a minor repair.

🔧 How to fix a leaky injector?

If you are experiencing symptoms of the HS injector, it may not always need to be changed. Sometimes injector cleaning Enough: it is simply clogged with impurities present in the fuel, or it gets jammed. If a nozzle is leaking, it can also be repaired if it is not already broken.

If your gasoline vehicle shows injector leakage symptoms, this is a rare occurrence. Replacing a faulty injector O-ring will solve the leak problem without replacing the injector. In a diesel engine, very high pressure makes leaks more frequent. Again, replacing the damaged seal will fix the problem.

Repairing a leaking injector costs significantly less than replacing a part, especially since it is usually recommended to replace all 4 injectors, not just one. Calculate the price from 50 to 110 € fix the leaky injector.

Now you know what to do if your car shows symptoms of an injector leak. Don't keep driving and rather take your car to the garage quickly because replacing the injector seal is a minor intervention... unlike replacing injectors.