Without a flush surface to seal against, the injector will not shut off, and piston damage is usually the result. I know it does not seem like there is but am I missing something here in the diagnosis? For an engine to run smoothly, a car's fuel injectors need to function properly and inject precise amounts of fuel into the engine. A car that has a bad fuel injector will often have a rough, or choppy, engine idle. While fuel injector problems usually give warning, driving your vehicle for a long time with a clogged or faulty fuel injector can cause problems. But for the purposes of this post, we’ll focus on one of the top reasons we’ve found fuel injectors go bad: poor fuel quality. Too much fuel may foul a plug making it look black or dark and cause it to misfire. When they are dirty but not yet clogged, you may be able to clean them with a good fuel injector cleaner. Bad fuel injectors are the root cause of many problems in an automobile. Parts alone are about $600 to $1200 and the labor cost will run about $200 to $250. When power goes to a coil of wire wrapped around the top of the pintle rod, the coil magnetizes and pulls the rod upward. Smell Of Fuel. Leaky Fuel. Below are the most common symptoms of a bad fuel injector and the average cost to replace them (when cracked) or clean them (when clogged). In a bid to reduce exhaust emissions, manufacturers were forced to change how fuel consumption was controlled by engines. Click Here for the 5 best options. Either way, you’ll want to take care of the problem soon or the engine will be susceptible to overheating or other problems that occur when the proper air/fuel mixture is upset. https://www.carburetor-parts.com is providing this video to illustrate what to look for when you suspect bad fuel injectors. Both scenarios can cause a rough engine idle. Alternatively, part-time or full-time professional mechanics can purchase a fuel injector cleaning kit that will usually pay for itself after a few uses. Automotive engine performance is negatively affected when an automotive fuel injector goes bad. Most vehicles from the 1980’s and newer are equipped with advanced electronic fuel injection engines (replacing the carburetor). It is either a leak in the injector or its … Either way, you’ll want to take care of the issue soon so no serious damage to your engine occurs. I am having trouble getting my engine to fire. And there is a misfire. A chain reaction of fuel leak will be fuel odor. Either way, you need to find the cause of the gasoline odor and fix it right away before it becomes a big safety hazard. Fuel injectors inject fuel into the cylinders of your block. Its job is spraying the combustion chamber with atomized fuel. Please advise my car is very sluggish going up a hill and the rpm goes and down without me pressing . I recommend you bring it to a local mechanic so he can help you diagnose the problem. However, I would call that a cause, not a symptom. For more severe cases of dirty or clogged injectors, a more expensive professional cleaning is required. Change fuel filters and go from there. Sometimes when you add fuel cleaners they loosen particles/sediments in fuel lines and fuel rails causing clogs in injector screens, injector tip spray valves, needle valves in carburetors, and can clog filters. Fuel injectors go bad when the solenoid or the spring fails. It cranks but if I pump my gas peddle it fires never did this before, ever. If the engine is not getting the right amount of fuel it needs for combustion, then it will place more demand on the injector to supply it with additional fuel. This, in turn, causes the car to do convulsive or rough idling. Nobody would love to come across such a snag, especially for those who have experienced the hefty repair charges from their local mechanics. Can agree with all given above except no check engine light. If your fuel injector is actually broken or cracked from damage or old age, then gasoline will begin to leak out of it. It makes sense to shop around for this type of job. It’s happened to me before also in the past. The fuel injectors atomize the fuel and send it as a steady and straight jet of fuel, to the engine to fire up. At Injectors Direct, we specialize in replacing 2001 and up Chevy and GMC Duramax, 2003 and up Dodge Cummins, and 2003 and up Ford Powerstroke. Strong fuel odor When this happens not enough fuel enters into your Camry’s combustion chamber. Any malfunctioning of the fuel injector will result in angled spray pattern, which is not useful to enhance engine performance. A dysfunctional fuel injector may inject too much or too little fuel into an engine's cylinders. Dirty Or Clogged Fuel Injectors. A faulty fuel injector will cause the corresponding cylinder to not be able to fire. When an automotive fuel injector goes bad, automotive engine performance is negatively affected. It seems like once a plug is fouled in this way, it never fires as well as it should and it should be replaced with a new plug. (Short and Long Term Effects), What Does AMG Mean on a Mercedes? In some cases, a fuel injector leak can cause the air/fuel mixture to be so rich that it eventually burns out the catalytic converter. Fuel injector stuck On all of the time (as soon as the key is turned On). Below are 9 signs of a bad fuel injector that you can recognize early on. Some motors, like the Dodge 4.7L V8 are very susceptible to this. The hotter, middle injectors in an engine are most vulnerable to heat soak. Fuel injectors are considered to be dirty when the hydrocarbons and additives which all forms part of todays fuels, together with engine gunk and carbon, cause the injectors to become restricted. See if you have any check engine lights that give you a clue as to what’s going on. There are a few basic problems that fuel injectors can have. Using non-OEM parts can save you some money while certain makes/models of vehicles can run upwards of $2,000 for a replacement. Having only two injectors reconditioned is the most likely cause for running bad. While you may never have a problem with your fuel injectors (especially if you regularly use a fuel injector cleaner), sometimes they get dirty, clogged, or completely fail and need to be replaced. The purpose of a fuel injector is to inject a predetermined amount of fuel into an engine cylinder to facilitate engine combustion. There are many symptoms that can be spotted on a vehicle before complete injector failure and dreaded limp mode transpires, so educating customers and fleet or vehicle owners is a must. So I have a 2004 Ford F250 7.3 L. I have every single symptom named as far as it being bad fuel injectors. When you shut off your engine; the injector will soak up the heat of the engine. Leaking Fuel. 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