19380 Spark Tester

I haven’t tested a coil pack with this but it does work well for spark plugs and spark plugs wires. It’s an easy way to tell if a cylinder is misfiring due to a lack of spark. The spark in the tool would probably be hard to see in sunlight but it’s ok in a shop.

The spark Checker is very easy and convenient to use. I keep it in my pocket when going from job to job and allows me to easily and quickly check for spark on engines of all sizes. It does not work on COP type ignition systems. The quality of the spark checker is first class and wouldn't hesitate to buy another in the future. I was so impressed with the spark Checker I purchased another one to give to another technician.

Did not work at all. Defective on Arrival. I took a chance with some poor reviews, and I should have trusted my gut. Look elsewhere!

Quick way to see if there is spark being sent the sppark plug

Very easy to use but you cannot see indication if ambient light is moderate to bright. Works very well in dim or dark conditions.

Big help finding out what was wrong on my 93 Buick LeSabre, found out the cylinder #6 wire was not firing. So i changed the plug and the plug wire still not firing so changed the Ignition Coil and WORKS. Thought for sure it was the fuel injection but the way it was running (chugged) but missed a little bit. The Coil was real easy to change (2 bolts) the # 3 on the coil did fire but #6 on the same coil did not. The other 2 coils (3 total) were good. Very simple to use, dropped a star because I dropped it and the light bulb went out and No replacement that I know off so I need to buy another one.

Works by induction; lets you see - by way of stronger or weaker flash - power from coil through wires to plugs. Check coil wire, and each plug wire, with out need to remove plugs or plug wires You will need other tools to get more specific results for specific parts; This tester is handy for glovebox or general tool box, Example: I found on my V8, one wire/plug weak, and on the other side, excessive crossover (power jumping through one wire shield to adjacent wires) and from the coil wire to two plug wires, Added some additional wire spacer-clips and tied coil wire away from other wires, pull the offending plug and clean, That is all I need until the next scheduled tuneup. For the price, this is a "gotta have" for the toolbox.

Well, time for me to add my two cents here. On the one bad review here, so you got a bad one, does not mean there all bad. I see the positive reviews outnumber the one bad one so what does that say. One bad apple, don't dump the cart. The one I received works as stated. How, don't ask me, I don't know, but it does work. There is not much to it so as I see it unless you run over it with a tank or use it for a punch it should last a good long time. The easy way to check spark for years was to grab the wire with one hand and stick a finger of the other hand in cold coffee and see if it heats up. With this little thing them good ol days I guess are gone, and the fun that went with it, cause this is faster than waiting for the coffee to heat up. Going to use it for a spell and then probably buy a few more to give out as gifts to my friends and employees who I am told prefer cold coffee over my idea of how to heat it up.

Works as it should but if you have a pre HEI (1974 and older car/truck) ignition system the light isn't as bright. I tried it on my John Deere mower and it was brighter than my old car. Plus on the mower it was more continuous cause it only has 2 cyl to fire.

No sirve no lo compren, busquen otras opciones. Mi producto venía sellado y aún así no funciona para nada. Lo compré con envío a México y me lo enviaron desde los EEUU. No podía hacer reembolso hasta que llame por teléfono al atención a clientes de Amazon.

Cheaply made and did not work on delivery.

it came fast and looks good.

Basura