Signs of bad ignition coil ?

[seremban]

.

I was wondering , what are the signs of faulty ignition coil ?


Thank You .

 

[Carbon]

Depends on the car. Here are some possiblities:

Engine won't run.

Develops OBD error code and engine runs rough.

Arcs over the surface of the coil as engine runs.

 

[Warstud]

Vehicle runs fine but stalls out and won't start again until it cools down.

 

[musicmanbass]

What kind of car? Coil on plug or distributor?

 

[morris]

dont for get any load you put on the tires travels all the way to the spark plug.