Is the spark plug part of the ignition system?
Something else is going on, and there is a very strong possibility it is with the ignition. The ignition system is considered to be passive. The spark plug only takes from the ignition coil what it needs to create an arc across the plug’s electrodes. It must be recognized that ignition demand is determined by the following:
Why do I have no spark in my ignition?
More complicated issues may also contribute to spark loss, but basic conditions are still the general means for good function of any ignition system. Knowing what to look for when troubleshooting ignition systems can allow proper decisions to be made when selecting repair procedures or replacement parts.
How to troubleshoot a no start ignition coil?
How To Troubleshoot A No Start (Ford 4.9L, 5.0L, 5.8L). This may seem like a no brainer because the most obvious symptom of a bad ignition coil is a no start no spark condition, but here are a few other symptoms you’ll see along with no spark:
What to do when your engine has no spark?
Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.
What to do if your spark plug is not working?
If there is no spark, unplug the white plug with blue and black wires that are at the bottom of the engine under the valve cover. Check for spark once again. If there is a spark, the coil is in good condition and the ignition kill relay or its wiring is at fault.
What happens when there is no spark from the ignition coil?
1 Power. Two positions of the ignition switch provide power to the positive primary post of the ignition coil. 2 Signal. With no external signal to the coil negative primary post, voltage would travel through the ignition coil windings without inducing any secondary spark. 3 Flow. 4 Open Circuits.
Something else is going on, and there is a very strong possibility it is with the ignition. The ignition system is considered to be passive. The spark plug only takes from the ignition coil what it needs to create an arc across the plug’s electrodes. It must be recognized that ignition demand is determined by the following:
How can you tell if your ignition system is weak?
If you remove the secondary lead from an oil-filled coil and it is wet, the coil needs to be replaced. The proper method to check for spark is with a spark tester. It resembles a spark plug but has a sunken center electrode that simulates a load on the coil. Holding the plug wire and seeing if a spark jumps to ground is inconclusive.