Fuel Injector Issues & How to Solve Them

Common Fuel Injector Problems & How to Fix Them

Symptoms Of Bad Fuel Injector

When the fuel injector is bad that means the engine will not get enough fuel in it. This will affect the combustion process and cause the engine to misfire amid other problems that relate to the smooth performance of the vehicle. Common problems include stalling after you have pressed the accelerator, struggling to accelerate and poor fuel economy. Most of these problems occur due to inadequate air to fuel ratio. Also, any delay could lead to overheating and the engine could stall.

What Happens When Fuel Injectors Go Bad?

Rough Idling

Idling is caused by an inadequate supply of fuel into the engine. Also, the vehicle's revolution per minute (RMP) will fall below the best level when it is idling. This, in turn, causes the vehicle to do convulsive or rough idling. And the engine could turn off if the RMP falls more than necessary.

Engine Vibration

It is the fuel that is sprayed into the engine from the injectors that is used for combustion. When the engine is denied fuel because an injector is going bad on one side, the matching cylinder will not fire. And the result will be continuous interruption or vibration of the engine when you are driving.

Vibration is a fuel injector problem symptom that corresponds to other engine problems You may need to run more checks to confirm that it is truly the injector that is causing the vibration.

Fuel Leak

Old age can make the injector have a fault, hole or be damaged. When this occurs oil will leak from the injector's body. Oil could also leak if there is a damaged seal which will deteriorate as time goes on. When you examine the injector visually you will see traces of fuel on the surface of the injector or the fuel rail.

Smell Of Fuel

Because fuel is leaking from the injector you will perceive fuel odor due either to the leak in the seal or in the injector. This is occurring because fuel is not burning properly as the injector is malfunctioning. Another thing that could cause fuel smell is a bad sensor or fuel line.

Failed Emissions Test

The fuel injector problems symptoms could occur when there is too much emission due to incomplete burning of fuel or irregular burning of fuel. This happens when the air to fuel ratio is tilted to one side making it too rich that it could burn the catalytic converter.

Solutions For Bad Fuel Injector Problems

Most fuel injector problems happen because they are not cleaned regularly. To prevent any form of blockage, clean it whenever you cover 30, 000 miles. Also, you can get a bottle of fuel injector cleaner for less than $15, while a professional mechanic may charge you between $50 to $100 to clean a very dirty injector.

Furthermore, you should be happy to learn that cleaning is the cure for most bad fuel injector problems. Another thing you could do is to change the O-rings if it has developed a leak. And, finally, the worst-case scenario is to replace the bad fuel injectors which could cost you between $800 to $1,500 depending on the type of vehicle.

How Long Does It Take to Replace Fuel Injectors?

Each time you crank the ignition and run your vehicle; you use the fuel injector to provide the engine with the fuel it needs to perform its work. So, the fuel injectors will last between 50,000 and 100,000 miles.

Can A Bad Fuel Injector Damage the Engine?

Yes, a bad fuel injector can damage your engine so badly that the vehicle cannot run again until it is fixed. Normally before a bad fuel injector would cause damage to your vehicle engine it would give you so many signs and symptoms like the one, we have discussed above.

So do take some time to observe all the sign and so you know what is triggering a specific problem.

Usually, a bad fuel injector on an old-model vehicle will show signs that will cause a cylinder misfire. This is caused because with newer fuel-injected structures, the injectors work in sequence, so if when the vehicle engine misses a dose of fuel, it won't run smoothly and may suffer damage over time.

It's less of a problem in older vehicles working with simultaneous injection systems. And that is because good fuel injectors can sometimes compensate for weaker injectors, allowing the engine to recover its sequence more quickly.