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.
All impurities, solid particles, and water in diesel fuel damage these precision injector elements. They damage the injector surface by erosion and corrosion. Paraffin crystallizing in poor quality fuel can also lead to an injection system failure. Simply put, the injectors will clog.
The injectors' nozzles become eventually clogged or blocked because of hardened deposits. Leaks can also happen and cause trouble. The O-ring is where the fuel rail meets the injectors and this part can get brittle because of the high heat from the engine.
Fuel injectors typically fail due to a buildup of contaminants such as carbon. Carbon build-up can cause a clogged or partially clogged injector, preventing the injector from closing all the way. This results in a drip that creates a misfire.
Fuel Additives
The best way to clean fuel injectors on a regular basis is to use a diesel fuel cleaner additive. This can be added to the fuel tank periodically to cycle through your engine. If done regularly, maybe once or twice a month, it can keep gunk and debris from building up in your fuel injection system.
Manufacturers design diesel injectors to have a lifespan of about 100,000 to 150,000 miles. The extent to which yours will last depends on various factors, including the following: The make, model, and age of your engine. The type of diesel fuel your engine uses.
Fuel is pumped directly into the injectors which, in turn, spray fuel directly into the cylinders or into an intake manifold. Your vehicle needs this fuel to start and run. Carbon deposits are a natural byproduct of combustion engines. Consequently, your fuel injectors will become clogged by carbon deposits eventually.
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.
With the use of contaminated fuel, erosion of the injector valve seat is likely, resulting in a partial functional failure that will eventually lead to a full functional failure of the fuel injector valve.
There are many reasons for faulty fuel injectors but the three most common issues are clogging in your car's fuel injectors, leaky and dirty injectors. You should remove the fuel injectors and clean them up before putting them back in for your car to function optimally.
"Fuel injectors have an atomizing nozzle that distributes fuel evenly for optimal combustion and efficiency." Now, a vehicle will typically have one fuel injector per cylinder, with a lifespan of between 50,000 and 100,000 miles, or about 80,000 and 160,000 kilometers.
Knocking noise is produced by the injectors. However, deposits build up in the tips of fuel injectors, typically when there's fuel left in the injector tips after the engine is shut. Timing Chain Meshing. The timing chain connects the crankshaft and camshaft which will produce a meshing sound if it is too loose.
If you're having a problem with your fuel injector, you have a few different repair options, depending on your specific issue. These options include purchasing a repair kit or replacing them with remanufactured injectors. Shop Diesel Fuel Injectors!
An abrupt loss of engine power is a somewhat obvious sign of a fuel injector failure. If the fuel injector is clogged, the fuel supply will be irregular too. When the fuel level fluctuates drastically, the high and low rpm's will cause the engine to move in surges rather than slow and gradual movements.
The most common sign of a bad fuel injector is the check engine warning light, which appears on the dashboard. As soon as an injector isn't doing what it should, this light will come on. (In other words, if it's adding too much or too little.)
Rust particles that get into the fuel, like other hard particulates, will cause abrasive wear to parts. Premature wear can cause part failures. Corrosion: Corrosion is one of the most common causes of injector problems. Water combines with acids in the fuel to corrode both ferrous and non-ferrous metals.
If the fuel injectors have deposits, it's important to clean them to restore engine performance back to the way it was.
The additives are poured into the fuel tank and increase the life expectancy of the fuel, prevent build-up or corrosion, and keep the injectors lubricated. You should, therefore, use a fuel cleaner to clear up the deposits, and follow it up with fuel additives to help keep the fuel system cleaner for longer.
Controlling combustion while compressing fuel is tricky and limits an engine's compression ratio, which is usually tops out at about 14.2/1. You can drive a diesel with a bad injector as long as your not leaning out the motor too much.
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.
This fuel mixes with air, and then a spark is added and BOOM, combustion. An “injector service” is nothing more than running some cleaning fluid (called “fuel injector cleaner”) thru your injectors. The fluid that dealerships will use is the same stuff you can buy yourself and your local auto parts store.
Fuel injectors should be cleaned at least once every 36 months, or 45,000 miles. Replacing weak or worn-out engine parts without improving performance is not a good idea in general.