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Depending on the vehicle, it is usually an ignition lead or spark plug.
There can be far more problems however, Injectors, burnt valves, leaky intake manifold, blown head gasket, individual coils, and the list goes on, if it misfires under load, ie. going up hill in a low gear then it is more likely an electrical misfire, if it is all the time and very constant then it may be one of the other options listed above.
It may be easier to figure out by knowing what type of vehicle it is and what year.
What else can I help you with?
2001 Lincoln navigator cylinder misfire?
If check engine light is on, have a parts store read the code. It will tell you there is a random misfire and usually what cylinder is misfiring. Replace the coil pack for that cylinder and all will be well.
Misfire on cylinder 2 2000 Pontiac Grand Am?
Most commonly a bad plug or wire. If not that, then coil.
Can you fix your car misfire by cleaning your car mass air flow meter?
Misfire is caused when a cylinder doesn't ignite its fuel mixture. Suspect a bad plug, coil, or wire. This will not be caused by a mass airflow sensor, that can cause a rough idle or bad fuel economy, but will not cause an individual cylinder to misfire. Driving with a continuous misfire condition will eventually destroy your catalytic converter. If your check engine light is flashing you are doing serious damage to your cat converter.
What causes an f-250 to misfire at highway speeds?
if is model with computers etc,most probable cause is the cam positioning sensor
What does p1340 diagnostic code mean on a 2000 Isuzu Rodeo?
Isuzu uses the spark plug as a sensor of the burn efficiency inside the cylinder of the engine. Use of the wrong brand plug can cause this misfire code in a good running engine. Otherwise perform tune up to repair misfire
What causes a P0305 misfire in cylinder 5 in a 1999 Chevy Malibu with a V6?
a bad wire or a bad coil to cylinder 5.
What causes misfire in cylinder for 2000 Toyota Avalon?
What causes misfire 302, 304 and 306
What causes an occational misfire on cylinder 3 4 and 5?
Usually the occasional spark plug that needs to be cleaned and gapped.
What causes a cylinder two to misfire?
the gun powder ispacked to tightly and the preassure builds up and can cause it to misfire
Can coil pack cause cylinder number one to misfire?
what are the possible causes of misfire on number one cylinder in a dodge 2003 ram 4.7 liter engine
What causes a misfire in cylinder 2 in a 98 Kia Sportage?
Spark plugs
How do you fix code P0305?
Find and repair the cause of a misfire on cylinder #5.see related question below.Find and repair the cause of a misfire on cylinder #5.see related question below.
Do fuel injectors involve misfire?
I'm not a mechanic / technician but I BELIEVE if the fuel injector is restricted so that the proper air - fuel mixture is not getting to an engine cylinder , that an engine cylinder misfire can occur ( that is only one of the causes of an engine cylinder misfire )
What vehicle identification numbers have the engine misfire for the 2005 Chevrolet Colorado?
Stop by http://www.coloradofans.com there are different people that have had that problem. you can probably message them personally and see how they got to that problem. P0300= Random/ multiple cylinder misfire detected P0301= Misfire detected- cylinder #1 P0302= Misfire detected- cylinder #2 P0303= Misfire detected- cylinder #3 P0304= Misfire detected- cylinder #4 p0305= Misfire detected- cylinder #5 P.S. These are Diagnostic trouble codes, not vechicle id numbers.
What causes a cylinder 1 and cylinder 6 misfire in a 98 Cadillac Catera?
That would be that there isn't enough gas getting to them
What is random cylinder misfire?
It means that more than one cylinder has a misfire history. PO301 would be cylinder number 1 misfire. PO302 would be number 3 cylinder misfire.
What does code po305 means on a Dodge Ram?
#5 cylinder misfire.
