It could be a leaking or clogged injector. You could try swapping injectors around to see if the misfire follows one specific injector.
That would help you narrow it down really fast. I have a Chevy Silverado 6. What could be causing this? See if there are any codes and take it from there. I have a Chevy Traverse has , miles on it and when I start it up sometimes it sputters to start like barely no power. Every so often it stalls right after starting, as well as a small pop or tick sound when starting only when started while the engine is hot. No check engine light good fuel pump, alternator and starter are good, had a tune up spark plugs should be good, fluids are good and battery is giving off good voltage.
Any check engine lights? It is a wonderful blog post. Here, I have made a conflict between points 5 and 7. I found it the same. Could you please make me clear? Engine jerking or rough idle could mean misfires that cause the engine to deliver power unevenly. An engine that is hard to start may crank for a long time before starting, or may fail to start entirely the first few times.
I have an Mazda mpg that cuts out and dies at about rpm. Replaced coil packs, idle air control valve, mass airflow sensor and oxygen sensors and it still does it. Been to 3 different shops and no one can figure it out. Could it be a faulty computer?
Does it die as soon as you rev it up to 2, RPM, or when you hold the tachometer there with the throttle? It does it when you drive normally, as soon was it gets to rpm it skips, motor bangs around and dies. Have you checked the timing?
Timing was checked and car was run on diagnostic machine and nothing was found. After it dies it starts right back up but overdrive is off, headlights and tail lights are barely lit and the airbag light comes on. Thank you for your time answering my questions.
Sounds like an electrical issue like a bad ground somewhere, because these are seemingly unrelated issues. If you want to try it yourself, grab a wiring diagram for your vehicle and look for common grounding points or sections of the wiring harness shared among the components that are acting up. That may lead you back to a ground or two that is dirty, corroded, or loose.
I have got two cylinders misfiring and I replaced all spark plugs. The problem exists. Some of these include misfiring in the engine, catalyst inefficiency, and O2 sensor related errors as indicated by the on-board diagnostics trouble codes stored in the computer of the vehicle causing the following anomalies:.
The cost of owning a car itself has been a big financial burden to many and the costs for repairs and maintenance have been a big dilemma especially those who are having trouble making both ends meet. That is why as much as possible if they can do it on their own to save from spending much, they would. So can you really replace your own coil pack? The answer is yes. An induction coil is a spark coil that produces a high voltage from a low voltage supply.
The spark created will then, in turn, ignite the fuel. The electric spark generated due to the high voltage is a quick electric discharge that occurs as a result of an ionized and electrically-conductive channel. The electric spark occurs in the spark plugs. The spark plugs are devices for delivering the electrical current from the ignition system to the combustion chamber of the engine. They will then be able to light the compressed fuel and air mixture by the electrical spark created, while simultaneously keeping the correct level of combustion pressure in the engine.
A common cause of the ignition coil failing is due to a spark plug gap. The ignition coil consists of an iron core surrounded by two coils of copper wire.
The energy kept in the magnetic field of the core is the energy transferred to the plug. Within cars, smaller coils are used with one coil for each spark plug. A larger ignition coil can produce about 40 kV. These coils can be mounted on top of the spark plug, and are called a direct ignition plug. Coils can also serve two spark plugs, and are called the wasted spark system.
The wasted spark system consists of one coil generating two sparks per cycle to each cylinder. The fuel within the cylinder can then be ignited. The wasted spark system is more reliable than a single-coil system, and is also less expensive than a coil-on-plug option.
There are a few key steps you should take to determine if the problem is going on with your ignition coil, coil pack, or another part of your car. First, you should test the coils with a multimeter. Ignition coils retrieve energy from the battery, which is usually at least 12 volts. The coils then convert the energy to a higher voltage, of atleast 50, volts, in order to create a spark.
This energy then travels via the distributor to the spark plugs, and then ignites the fuel. Some vehicles only have a couple of ignition coils that can power various spark plugs — remember the wasted spark system we were discussing earlier. Other models use one ignition coil per plug. The number of coils is irrelevant to this next step — you need to remove all of your coils, no matter the amount you have.
Genuine parts for a Ford 1. My Astra developed the same fault last week whilst on holiday. Why the need for genuine parts? No warrenty issues on a 9yr old car. Well reading the forums, seems once it starts miss-firing, changing the above will temporarily fix it, then a few hundred miles later it will return and people start changing sensors, then it comes back and they clean the EDC plug, then they sell the car pronto before it comes back again!
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