try ehow.com
It depends on what engine yu have but on a lot of them it is under the coils. If your car has a dist it is inside.
IF IT IS A 4 CYL YOU PROBABLY HAVE A BAD CRANK SENSOR OR IGNITION MODULE.
Inside that flat cover on the very top of the engine.There are 2 inside that plastic housing,after you remove that assembly.
I just went through removing the Ignition Control Module and Coils for testing. There are two coils which sit on top of the ICM. One is responsible for firing cylinders 1-4 and the second is responsible for firing cylinders 2-3. The 1993 Cavalier has a Direct Ignition System (DIS) or Electronic Ignition. 1 12... I put 12 on mine and got 27% increased gas mileage which in 2 months offset the cost2 coils if it dose not hava a disterber cap
you take off the ignition coils on top of the valve cover there are 4 bolts you have to take off then pop off the ignition coil
Disconnect the battery. Remove the ignition coils. Remove the ignition control module that was under the coils, and replace it.
It costs $4,500 to $5,000 to replace ignition coils on a land rover 09 LR two
On a 2.8l v6 it is at the front of the engine behind the ignition coils.
it is what the coils are mounted too.
There is 1 per cylinder.
The spark plugs are located under each of the ignition coil modules on 2008 Chevy Colorado. It is necessary to remove the coils and related wiring to access and replace them.
follow your spark plug wires under the motor to the ignition module where the coils are mounted and the wires are attached to them. use a wrench and a screw driver to take off the module and the coils. do not lose the plug firing order.