how to tell if fuel injector is bad

How to Tell if Fuel Injector is Bad – 3 Important Signs

Increased fuel consumption, poor engine Performance are all signs to tell if fuel injector is bad or not. Fuel injectors are located in the intake manifold and spray fuel through a tiny nozzle.

The sold function of the injector is deliver fuel to the combustion chamber via a special nuzzle as fuel mist. The injector uses a delivers fuel to the combustion chamber as mixed fuel mist instead of a strong jet stream in the case of a carburetor.

When the throttle valve opens, your fuel injector sprays fuel to mix with the air and then enters the engine’s combustion cylinders. If for any reason, the injector stops to perform its functions normally then it will affect the engine performance.

Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. Now the big question is how if fuel is injector is bad or not and how to fix a clogged fuel injector.

Common signs to tell if fuel injector is bad

If a fuel injector is bad, it means that the injector has failed or is failing to preform its normal function. A number things can cause an injector to malfunction or even stop working totally.

One of the things that could make a fuel injector to be bad is dirt, another thing is tiny carbon in the fuel. Without intentionally introducing dirty the injector it self an get clogged from residues in the fuel.

Below are the most common and evident sings and symptoms of a clogged or bad injector

  1. Difficulty is starting the engine.
  2. Poor idle.
  3. Failed emissions.
  4. Poor engine Performance.
  5. Engine does not reach full RPM.
  6. Strange increased in fuel consumption.
  7. Rough engine performance.
  8. Surging and bucking under various throttle loads.

This signs and symptoms remains the same with all injectors regardless of car brand or manufacturer. If you notice any of the above mentioned symptoms in your car when you should consider replacing the injectors or cleaning them.

There some remedies that are said in the case of injector dirt and clog. An injector cleaner is a very good product and step forward to keep the injector in a good working condition.

Read Also:- what Does a Exhaust Do in a Car- 3 Importance of Muffler

How to Maintaining and keep Injectors Clean

Maintenance is what determine how much a car in general lasts. whether or not your are driving a new car if your don’t maintain it, the car will get spoilt early than it should.

The same principle or maintaining your car applies to the fuel injector lifespan as well. The fuel injector needs to be kept clean at all times regardless of being new or old.

Like i said before one the ways to keep the injector clean is by using the injector cleaner. Apart from the use of injector cleaner, there are three ways to keep your EFI system flowing and your engine running which includes:

  1. Use TOP TIER detergent fuels (this is not the same as octane level). Only certain brands are classified as TOP TIER, whose fuel contains detergents to keep EFI systems running clean with every fill-up.
  2. If not using TOP TIER fuels, in-tank fuel injector cleaner every 5,000 miles will make up for the detergents not added in the fuel.
  3. Drive regularly. There’s nothing a vehicle can’t endure more than not being driven. As stagnant fuel ages, it can separate and evaporate, leading to the formation of deposits in the EFI system. If you must park your vehicle for a time, add fuel stabilizer to the last tank of the season and run the engine at least 15 minutes to get stabilized fuel to the injectors.

Can fuel injector cleaner cause problems?

There a lot of injector cleaner products in the market but the only tested and trusted injector cleaner that will not damage your car is Techron from Chevron. Even with the use of fuel injector cleaners, with time the injector get old dirty and sometimes fail totally.

One may also ask, how often should I put fuel injector cleaner in my car? The times to use the fuel injector cleaner depends on the type of transmission you have:

  • Gas-injector cleaners should be used every 1,550 miles.
  • Diesel-injector cleaners should be used in every tank.

If you find your self in this condition where the fuel inject has totally failed or has been blocked by dirt, replacement might be the best option. You could also try removing the injectors and try a bench injector cleaning.

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