This is preety new model,but still i won't rule out the spark plug on that cylinder.Run your vehicle in dark with hood open .See for any sparking on ignition wires on that or any other cylinder.If you find any replace the ignition wires.You should not rule out the ignition coilpack ,try cleaning it for any residue on it.Well there are too many things that can cause a misfire .If this would not fix the problem you should check for any vacuum hose leak.Ther is the diagram for vacuum hose on your van hood.refer it.Last would be the fuel injector on that cylinder(for 2003 model well it depends on your mileage).Go to "mr lube" kind of shop and get your injectors cleaned.After all this i can just wish you good luck. In my 98, I was getting misfires while cruising (but not at idle) because of a defect EGR sensor! Talk about B.S. That was causing FOUR computer codes (engine misfire, mixture too lean, EGR excessive and EGR insufficient) My Experience== I've had the check engine light come on and diagnostic codes for misfires occur for the following reasons: 1. Check or replace plugs and plug wires 2. Ingnition coil (there's 2) going bad 3. Vacuum leak which messes up the air flow. There is definitely a defect in the air intake which has tech service bulletins out on it. The seals go bad and need replaced which requires removing upper and lower air intake manifolds and replacing seals and bolts.
Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.
If you have a "check engine" light on, start with having the codes read. A misfire code can tell you which cylinder or cylinders are having problems. A misfire could be the cause of your engine vibration.
Contaminated fuel could cause a misfire.
get a tune up it could be the spark plugs not firing right or clean ur fuel injectors
Depending on the cause of the misfire, it could damage the catalytic converter.
Yes, if the wire is old and frayed or if it is rubbing against metal the wire could ground out and discharge into the engine block before it get to the spark plug causing the plug to misfire. If the contacts are worn or loose you could also get an intermittent misfire.
It could, along with anything else that can cause a misfire.see related question below.It could, along with anything else that can cause a misfire.see related question below.
A blinking check engine light means an engine cylinder misfire has been detectedNot only a misfire, but a condition that could cause a catastrophic failure of the catalytic converter. The injector on the effected cylinder(s) will be shut off by the PCM
Could be a misfire. In need of a tune up.
Could be, spark plug(s), contaminated fuel (water),
You need to isolate the cause of the misfire. Could be plug, wire, fuel, injector, internal engine, etc...
Probably a misfire, it could be in need of a tune up.
Yes they can, if one or more are either stuck open or not working at all it will cause a misfire.
water could cause a service engine light to come on, for example, ignition systems are sensitive to moisture and could cause a misfire and turn the light on. You need to find out what code the computer has set. Some auto parts stores have scan tools to loan.
You could have ignition problems if it is the engine causing the jerk.
If the cat was damaged and restricting the exhaust it could cause a random misfire (P0300) but you would also have a severe loss of power.
could be a number of things cracked distributer cap, bad sparkplugs bad plug leads,setting, or bad igntion condensor if automatic transmission,it could be automatic idle adjustment on engine
A flashing check engine light indicates a engine condition that could be causing severe catalytic converter damage. The usual cause is a harsh misfire. The engine computer will have set a code, or codes that will help in diagnosis.
It's called a misfire... or random multiple misfire. It can be cause by a number of things. check your spark plugs for fouling, your spark wires for breaks or cracks in the rubber, your distributor, or your fuel injectors... it could be a tricky prob. or it could be easy as pie to fix...
It could, depending on the cause of the misfire.
can low grade gas cause a misfire, I don't think so but, Contaminated (water, etc) gasoline could. Flow restriction (plugged fuel filter, plugged fuel injector) could. Incorrect fuel pressure could.
A misfire caused by the ignition system exhausts unburned fuel into the exhaust system that enters the catalytic converter and causes its temperature to rise dramatically. An exhaust issue could cause for cylinder 4 to misfire. The camshaft lobes, which are responsible for opening and closing the intake and exhaust vales, are another source for a misfire and rough running engine. The cam lobes for the No. 4 cylinder should be inspected to see if they have been worn down due to lack of oil or other mechanical problem. A damaged camshaft lobe will not allow a valve to open properly if at all.
The distributor could be failling, there might not be enough fuel or air reaching the engine (too much is bad too), or your spark plugs/wires are damaged or not to spec.
I'm assuming you mean an ignition coil. If that is correct, an improperly functioning ignition coil will cause the engine to have a misfire, and could lead to severe engine damage if not corrected expeditiously.