If you have one or more faulty fuel injectors — due to wear or mechanical or electrical issues, driving for a long time can cause several problems: Stalling or failure for your car to start. Flooding of your engine. Pre-ignition of your fuel.
Your fuel economy will worsen when you force your diesel engine to overwork with a clogged fuel injector. The engine isn't receiving the appropriate amount of fuel for its combustion. As a result, it will add stress to the injector to get additional fuel.
A damaged fuel injector will not only causes issues with driving, but the effects will persist even as the engine idles. Instead of a smooth engine idle, it will be rough and irregular when the fuel supply is abrupt. Reduced fuel efficiency is another signal of a damaged fuel injector.
Any time a fuel leak is visible from any of the fuel injection components the vehicle should not be driven. The problem should be taken care of immediately. See you repair man ASAP if you suspect your engine has leaking fuel injectors.
If you've noticed symptoms of injector failure while driving, don't delay! While the risk of severe engine damage is relatively low, it's not impossible. More importantly, replacing a bad fuel injector will improve the fuel economy, engine power, and overall drivability of your vehicle.
What to Expect When You Get Your Fuel Injectors Replaced. Getting your fuel injectors replaced is part of maintaining your vehicle. The cost of a replacement includes parts and labor. The labor can cost between $200 and $300, while the cost of the parts will vary from $150 to $600.
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.
Although fuel injectors are individual, they are designed to work as part of a team with the other injectors. So, if you're wondering if you can replace just one injector or all, the answer is almost always to replace them all. Typically, the labor to replace one or all of them is the same.
Rough Idling/Irritating Idle Noise
Typically, a car delivers a subtle rumble when at idle. If you notice that the sound has gone from low to a rough and unpleasant noise, it may be a sign of bad fuel injectors.
Diesel engines work by squirting high-pressure diesel into the engine's cylinders, where it mixes with air and is ignited by a spark plug. These engines need to have plenty of fuel in order to keep running. Running out of diesel will ruin your injectors, so you'd better get some more before that happens!
Common causes of injector failure
While many things can cause breakdowns, the most likely cause of premature failure is fuel contamination. Fuel contamination occurs when debris in the fuel gets past the filtration, destroying the sealing surfaces. Think microns, smaller than a human's hair-sized, clearances.
You will feel your vehicle vibrate as you sit at an idle, and you may hear the engine cutting in and out. If the fuel injectors are clogged badly, your engine may stall. Your car, truck, or utility vehicle should idle smoothly.
Age and condition – if the injectors are old or worn out, a clean may not be enough to restore performance and could do more damage. Severe clogging may mean they need to be replaced anyway. Costs – cleaning fuel injectors is cheaper than replacing them.
One of the obvious symptoms of a clogged fuel injector is the lighting up of the "Check Engine" light in your dashboard. The fault codes usually associated with a clogged fuel injector can range from misfire codes to lean codes.
In general, they're expected to last a pretty long time. Both Bosch and Delphi, two major manufacturers of automotive components, say their fuel injectors have a life expectancy of 1 billion cycles. Essentially, that means that the fuel injectors should last as long as the car does.
Replacing one does not save effort.
Any diesel vehicle professional will not be inconvenienced by having to install a set of injectors. If you are installing them at home, it may feel like more effort at first. But the more you do it, you will prefer to quickly install new injectors together.
Yes, it's true that replacing old, worn fuel injectors is an easy way to improve an engine's efficiency. If you have an older vehicle with a set of worn fuel injectors, replacing them will help your engine run like new. You may even notice that your vehicle accelerates better.
Yes! When used regularly, fuel system cleaners can help work to remove harmful deposits and keep new ones from forming. They are especially important for engines running on gasoline containing Ethanol and fuel-injected engines.
On average, diesel fuel injectors should be replaced every 95,000 miles. Of course, several factors go into play such as operating conditions, the load being put on the engine, and the quality of fuel used.
A new or upgraded fuel injector can improve engine performance, reduce diesel emissions, and increase the uptime of your truck. Don't wait for a better system to come on the market, though, because when it's worn out, part of the fuel injector – or even the entire system – should be replaced.
While the engine runs, put the tip of a long metal screwdriver against one of the fuel injectors. Lean in and put your ear on the handle of the screwdriver. A clicking sound indicates a good injector. If you don't hear anything, the injector may need to be cleaned or replaced.