No spark from coil, bad plug wires, or bad plugs.
Worn spark plugs would cause mis-firing or non firing cylinders, both are no good for the engine, replacing the plugs may stop the knock (Could also be a different problem) But you should replace spark plugs as soon as possible.
Get a tune up. Replace cap and rotor, spark plugs, spark plug wires, and make sure the wires are in the correct firing order.
you need to change the spark plugs it should stop
If you have water on your spark plugs you have a serious problem. That is coolant you see and not water. You have a blown head gasket or cracked head. This engine will self destruct if you continue to drive it. Have this repaired ASAP and stop driving it until you do.
Timing or lack of fuel
no, change your spark plugs
can be the ign. coil. worn spark wires
inhibitory transmitters
No. The spark plugs are responsible for igniting the fuel in the cylinders. If you start yanking them out, the engine is going to stop running. This is covered in the book Things That Dummies Do.
Check your spark plug, replace if needed, and set it so the spark plug gap is correct.
Wow, You have a 4.0l right which is an Inline 6. That would be 6 spark plugs. What ever you plan to do STOP, call your local mechanic, PLEASE!!
yes