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Your engine will run poorly, rough, lack power, etc. as if it isn't running on all cylinders (because it isn't). It may or may not start poorly, or at all. It will likely be burning more fuel than normal. One or more spark plugs may be blackened with dry, sooty deposits (indicating poor ignition). If spark tested, one or more spark plug leads may show weak or non-existent spark.
Engine diagnostic tools will often be able to point to a coil pack as being problematic, but often can't tell conclusively. They will often simply say that some cylinder or another is misfiring.
Note: Before assuming a bad coil pack, check your spark plugs and wires and replace them if they are either bad, quite old, or if their trustworthyness is questionable. Plugs and wires should be replaced in complete sets whenever possible.
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Symptoms of a 1998 dodge stratus bad coil pack?
symptoms are: you can hear the engine missing, spitting and sputtering, loss of power...you can tell if it is a coil pack by unscrewing the spark plug that it connects to coil pack. when you look at your spark plug it should be a light grayish, white..this means the coil pack is working....it is best if you do this with new spark plugs, because your spark plugs could be bad. but you do this process until you find a bad plug then, that coil pack probably is the bad coil pack.
Symptoms of bad coil pack?
One of the symptoms of a bad boil pack is a rough idle. Other symptoms include a loud engine, loss of power, and a check engine light that goes on and off.
What are the symptoms when the coil goes on a 2002 sebring?
Symptoms of a bad coil pack can vary. Most common is a Misfire which will turn on the check engine light. the most common way to test a coil pack is with a volt meter set to OHMS
Bad coil pack?
The year, make, model, engine and symptoms info would help.
Coil Pack going bad?
Most automobiles will not start with a nonfunctioning coil pack. The coil pack will cause the spark plugs not to fire.
How do you know if your coil pack is bad?
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Would coil pack make a bad smell of gas on a2002windstar van?
A bad coil pack would not smell like gasoline.
What is the problem if the middle coil of a 1991 Dodge stealth DOHC 6 cylinder is not firing?
bad coil pack... replace coil pack
What happens when coil pack goes bad?
Then there is a no spark condition and engine will not run. If it has more than one coil pack it will miss on the cylinders controlled by the defective coil pack.
Why would a 4.3L vortec not get fire to the spark plugs?
Bad coil or coil pack.
How do you know when your coil is bad on your 2001 Hyundai elantra?
It is important to know the symptoms of a bad car part. The symptoms of a coil going bad would be having a trouble starting and running the car, the coil getting hot, and poor fuel economy.
Ignition coil on a 1998 ford expedition XLT?
Go to AutoZone have them rear your codes for FREE. This way you will know which Coil Pack is goig bad / or is bad. If you have a 4.6L you will have only 2 Big Coil Packs. If you have the 5.4L you will have 8 Coil Packs , One coil pack for each cylinder.
