THIS IS IT!!! This solved my issue diagnosing my 2002 Mustang GT!! Thank you! Just happen to have one of these and sure enough two of my coil packs were dead!!
This tool is a magnetic field detector . It will detect magnetic fields on fuel injectors , spark plug coils , or starter solenoids . It will pickup the fields of any magnet . It is quite useful and inexpensive and works on A/C or D/C systems . 6/19/23
@@critical_awareness7587 Exactly! That IS what it says (AC) and it basically told me all my coils were dead (one beep no flash) Is there a separate one for DC?
I had a misfire on cylinder number 2 and 7 on my Dodge ram. Replacing both coils didn't fix the problem. Removed the spark plugs and the electrodes were completely worn away. So a cylinder misfire isn't always a bad coil. Start with the most inexpensive thing first! Luckily the auto parts store let me return the coils
Next time swap the suspected bad coil with a cylinder that you know is functioning, then see if the misfire follows the coil. Pretty easy way to rule out the coil.
If I found a "dead coil" ,I'd be pulling the plug also to see if it's not all fouled up from misfiring for so long, since the coil is popped out already, why not it's only another few seconds to see so you don't have to go back in.
That's great but u don't know forsure if it's the coil, could be wiring/connector or module. So u still need to swap some coils to c if it changes cylinders. I mean most common is the coil but I've seen it be the wiring twice. And I'm a HD diesel truck tech and only worked as an auto tech for a few years.
I bought about 20 of these for 1 dollar AUD! I gave some away but I find that this is the quickest way to test ignition coil! Btw its just an AC voltage tester .
I use to use the timing light on the spark plug wires to see if the current was consistently flashing or if it was missing every now and then. That told me if my spark wires were bad.
@liuj88 just use a little pocket screwdriver that has a magnet on the end. Start the engine and hold it over the coil, very close. You'll feel what seems like little fish bites as the magnetic field collapses on each firing event
I, of course, have to have one of those testers that never even flickered on a just-installed NEW coil, let alone the old ones on my '03 Toyota Corolla. My tester is marked "VoltAlert 1AC-D, sensitivity 90-1000 VAC". It does work on my home's electrical outlets. What brand did Nuts and Bolts use?
yep.. had the dealer do that. one went bad. then another with the check engine light on and they said F it just do all 4 and change the plugs. problem solved
@@itswais77 sounds like an easy valve cover gasket replacement. maybe also spark plug tube seal. common on mazda and honda as far as i know. 2-3 hour job with the right tools
Unplug coil pack does not comfirm bad coil. We only know that one cylinder is misfiring. It might be coil, spark plug, injector, low compression or blown gasket. Method in this video can tell coil is not working.
All this is is a quick way to see if the ignition coil is firing. You can swap the coil to another cylinder and see if the misfire moves to that cylinder.
Matco robbing 😂 techs in those mobile trucks with a tool that been around forever lol electrical engineers been using this match just painted and stamped they name😂
A Colorado police officer was found guilty of two misdemeanors on Friday after facing charges for putting a handcuffed woman in a patrol car that was parked on active railroad tracks and then struck by a freight train.
Can coils also be tested similar to this w/ a multi-meter by putting the black lead on the frame of the engine and touching the red lead just like u did here w/ each coil?
Looks like a 2 liter ford focus engine. Coil packs for this engine are cheap. Replace all of them with new ones. Change spark plugs too and your good for at least 100k miles.🤗
Ahah it is… my first thought was a first gen mazda3 or a mazda 6 of the same era with the 2.3 which is a Mazda engine also used in the focus in 2.0 form
I think it is difficult to trust this device ... What if the spark is weak? There will be a weak magnetic field. The device will show that the coil is good ...Also, what if there is a spark leak? At first I thought it would work and after thinking I don't want to do that
me out , I changed the spark plugs and wires on my 01 Carvana and after doing that my van has a ruff vibration at ideal or coming to a stop on red. I got a mechanic to clean out the threading where the spark plugs go and it keeps doing it maybe it’s the coils ? I also need an oxygen sensor maybe that will do the trick? If anyone has been in this situation help me out thanks !
@@marsinbako8491 it’s gotten a little better over time still vibrates at ideal but not a constantly like before , I’m thinking it’s the 02 sensor or front engine engine mounts was told could fuel injectors can be dirty since it is 22 years old I used a lot of the STP’s fuel injectors clearers seems it’s not the case because the gas mileage was better then normal so I think there good . Have you figured out why yours vibrates?
@@NutsandBoltswithTone 225kmiled no spark from them I replaced crankshaft sensor and camshaft sensor still no start it's getting fuel no spark I believe coil packs are original 2010 Ford focus 2.0
You don't need matco. Probably several dollars over what other brands are. It's just a pen tester for checking current through cords, outlets, boards, ignition coils, etc. I do have to say tho, never thought about using on coils. That's a great idea.
Dude take my advise! That tool is not 100% accurate, sometimes the problem is vintage leaked and the tool will pick it up as a good coil because technically the coil is working, it's just the voltage not getting to the spark plug
sir i just want to ask. i have ford focus 2009 1.8l 4dr. sometimes when i start my car it miss firing ¹st to ²nd time but on the 3rd time it completely fine. no miss firing. hope u will notice and may u can help me with this issue i have.
15$ in low voltage section at Lowe's or any hardware store.
What's it called?
NVM I'll googled it haha
Whats it called. I cant find it. Lol
@@autumn05225continuity tester
@@autumn05225ignition coil tester
THIS IS IT!!! This solved my issue diagnosing my 2002 Mustang GT!! Thank you! Just happen to have one of these and sure enough two of my coil packs were dead!!
Awesome happy to help
@@NutsandBoltswithTonehey mane how much it cost G
@@wildestcowboy26684.99 at harbor freight
Do you think this would for for the 2004 mustang gt 4.6?
@@orlandolopez5285yes
This tool is a magnetic field detector . It will detect magnetic fields on fuel injectors , spark plug coils , or starter solenoids . It will pickup the fields of any magnet . It is quite useful and inexpensive and works on A/C or D/C systems . 6/19/23
thanks bro,
been doubtfull about it first, now i can say it really is
Me trying to find mine
non contact ac dc volt tester. 4.99 at harbor freight
Your doing God's work.
@@rjayc8764Helping the/his people?🙏
Nope. It isnt ac dc. Just ac. Wont work
@@critical_awareness7587 Exactly! That IS what it says (AC) and it basically told me all my coils were dead (one beep no flash) Is there a separate one for DC?
saved my life but i used the commercial electric tester not matco.. best way to test coils by far. 60 seconds to test all 6! 10/10!
Oh heaven my! Thank you so much sir. I been trying to figure out which coils were bad in my cts. This solved my problem. Thanks again!n
Thank you for this vid. It worked for me and replaced coil and away we go. Used the Harbor Freight Ames brand light. Worked like a dream.
Awesome, yes there are a lot of brands, it is a cheap tester to get an idea if spark is there or not.
@@NutsandBoltswithTone will it work any car?
This is awesome, I've been taking them out and using an ohm meter to check the leads... this is much quicker. Thanks!
Man these are both great ideas. I think you could use the ohmmeter after you isolate the weak/bad coils
Thanks bro this is exactly the kind of hack I was looking for. Speaking of looking for...Just gotta find my tester now lol 😅
Thanks for an unencumbered, easy to understand vid.
@@jerryjaystone9444 your welcome
I had a misfire on cylinder number 2 and 7 on my Dodge ram. Replacing both coils didn't fix the problem. Removed the spark plugs and the electrodes were completely worn away. So a cylinder misfire isn't always a bad coil. Start with the most inexpensive thing first! Luckily the auto parts store let me return the coils
Next time swap the suspected bad coil with a cylinder that you know is functioning, then see if the misfire follows the coil. Pretty easy way to rule out the coil.
@@adammasci9737 yes you are correct I thought about doing just that but was frustrated
If I found a "dead coil" ,I'd be pulling the plug also to see if it's not all fouled up from misfiring for so long, since the coil is popped out already, why not it's only another few seconds to see so you don't have to go back in.
@@MrTheHillfolk I did that and all of them checked ok
At least it points out to the right spot. We can then troubleshoot from there.
Thank you, thank you. You helped fix my truck problem.
Awesome
What were your truck symptoms before replacing ?
I got one of those. Thanks for sharing
That's great but u don't know forsure if it's the coil, could be wiring/connector or module. So u still need to swap some coils to c if it changes cylinders. I mean most common is the coil but I've seen it be the wiring twice. And I'm a HD diesel truck tech and only worked as an auto tech for a few years.
This helps narrow down the problem though right?
I like that, very quick.
what this call? is it on Amazon?
@@flexable222matco ignition coil tester. $35.
Thank you now I can save my money for getting screwed for mechanics
I called a commercial mechanic place and told them the issue and was told a diagnostic would be a hundred dollars. Smh.
Lmao
I bought about 20 of these for 1 dollar AUD! I gave some away but I find that this is the quickest way to test ignition coil! Btw its just an AC voltage tester .
From where you bought it?
@@waseemalibaig1578 in Logan city in Queensland
I use to use the timing light on the spark plug wires to see if the current was consistently flashing or if it was missing every now and then.
That told me if my spark wires were bad.
this item seems to work similar to the hall effect clamp of the timing light
That won't work if the coils aren't on the plugs.
I like your idea but didn't comprehend it all, please help
Going to try this later today as of 05/23/24 before I buy new spark plugs & coils 😅, thank you!
This also works on class 8 trucks with electronic injectors.
@@jaybee5832 oh sweet
Now that is dope as heck!
You can also use this tool to test the magnetic field in the relay.
Dam I never thought to use my a/c tic for this , I used to have one from fluke that detect low voltage I don’t think make anymore
Hell yeah.. im gonna give this a try
Cool. I have a lite that flashes when put near wires and plugs coils. But still those wont tell everything about coils but i still like
Just take your pocket screwdriver with the magnet and hold it over the coil. You'll feel the "fish bite"
Can you use any magnet and can you test while the coils are out of the car?
Can you please elaborate? What do you mean by "fish bite"?
Is this only with the car on?
@@BostonRyan yes it has to be running.
@liuj88 just use a little pocket screwdriver that has a magnet on the end. Start the engine and hold it over the coil, very close. You'll feel what seems like little fish bites as the magnetic field collapses on each firing event
High voltage line tester.. got one from like Home Depot. Those things are great. :)
Oh shit. Thanks. I got one of those
Dude, badass.
I, of course, have to have one of those testers that never even flickered on a just-installed NEW coil, let alone the old ones on my '03 Toyota Corolla. My tester is marked "VoltAlert 1AC-D, sensitivity 90-1000 VAC". It does work on my home's electrical outlets. What brand did Nuts and Bolts use?
Thank you..... Fixed my problem.... I really appreciate your information Thanks again.
It's simpler than needing that tool if you definitely know a coil pack is bad just replace them all at once
yep.. had the dealer do that. one went bad. then another with the check engine light on and they said F it just do all 4 and change the plugs. problem solved
Well damn imma go do that right now
Damn never thought of this nice
Thank you Bud!
You bet!
Thank you !!
Yw
If only all misfires were caused by coils lol.
I just pulled out all the spark plugs from my Mazda 626. Only two were oil fouled, the others in good condition
I didn't pull the coil out, cuz it's confusing. All the wires have to be labeled and put back perfectly back on the coil
Make sure you labeled each spark plugs wire with a magic marker, or tape, or your in for trouble!!
@@Chris-em2qclmaoooo it’s not looking good for you broski
@@itswais77 sounds like an easy valve cover gasket replacement. maybe also spark plug tube seal. common on mazda and honda as far as i know. 2-3 hour job with the right tools
I’m having a misfire and evap leak on my 2011 hemi charger this help alot
awesome
That works on a dead coil but not one with carbon tracking down the side of the plug
Thanks man
Or unplug each coil pack and go by the tone of the engine, if it gets worse the coil is good if it doesn’t change then the coil is bad
Sometimes the connectors' plastic becomes very brittle. So it's best to only break the one connected to the faulty coil instead of all of them😅
Yeah then you end up changing coils that didn't need to be changed
Unplug coil pack does not comfirm bad coil. We only know that one cylinder is misfiring. It might be coil, spark plug, injector, low compression or blown gasket. Method in this video can tell coil is not working.
Great way to ruin a driver in the pcm. Dont do this on a modern car
@@firstlast--- absolutely
Looks like a circuit tester for 110v outlets & wires. I wonder if coil voltage & current would trip the 110v tester?
It does
This engine is un unburdened by what has been.
Wow i hope that really works.. been having a miss fire for about a month trying to figure it out
All this is is a quick way to see if the ignition coil is firing. You can swap the coil to another cylinder and see if the misfire moves to that cylinder.
Its the 3rd coil as well. Its barely working. Plus that motor is running too rough to be misfiring on one cylinder
Nice tool
So, when it has a steady light, that means it’s good.
Should be flashing
One bad and one weak mean replace all
Is this the same type of device used for testing electical outlets?
Honestly I'm not sure, I've seen people in comments say it is.
good, but is it the coil /wireing/or the PCM?.
Well you have to diagnose that, this is only to see if your problem is spark, it is a simple test to see if spark is the direction to go
Can this detect a dead fuel injector
No
So we can use a voltmeter too then?
@@YeskaSmoke420 that will not tell you if the coil is actually firing
Retired Catapiller Heavy Equipment Mechanic. USELESS if the spark is leaking from boot to cylinder head. Many ways of misfire
There are many reasons this isn't accurate.
can you use the same tester for outlets? or is this specific for cars?
It's only for ignition coils
Tic tester if y'all were wondering the official name
Get some energy going feel the power do it old school pull the coil and a screwdriver 🪛 😎😎😎😎😂🤣😅😂🤣😂🤣
Definitely can't misdiagnose it that way
@@NutsandBoltswithTone I'm still scared of getting my hands near of spark plug wires if the engine is running 🤣🤣😂😅😂
Nice job 👍
Those have been around for a long time…most electricians use them everyday.
Yes sir we do use them but can’t rely on them like a multimeter/tester
Very true. Good idea though man. I like it
Matco robbing 😂 techs in those mobile trucks with a tool that been around forever lol electrical engineers been using this match just painted and stamped they name😂
Thanks, I should read more before I post questions lol
@@jonmiers5114😂
Just get a sexy GF and don't let your wife know about her....
A Colorado police officer was found guilty of two misdemeanors on Friday after facing charges for putting a handcuffed woman in a patrol car that was parked on active railroad tracks and then struck by a freight train.
Misdemeanor charges are comparable to shoplifting bubble gum at a grocery store !
This may be a super stupid question but i cannot get my vehicle to start up. Will this pen tool work on a car that has power but wont run?
So long as it's cranking.
How do you see that it's 'obviously' misfiring?
Uneven engine
Same as a typical stray voltage tester?
Can this be use on sensors and solenoids?
@@hendricks177 no
awesome 😮
So what's the name of the tool?
@@Mega07 here is a link to one
amzn.to/4emNAf5
I have a Nissan Sentra I’d have to remove the intake manifold to do this test is that allowed leaving the block exposed ? Showing the valves ?
How do I get it? I am in Nigeria
@@emenadozie here is a link to one
amzn.to/3TNfaKU
Can coils also be tested similar to this w/ a multi-meter by putting the black lead on the frame of the engine and touching the red lead just like u did here w/ each coil?
No
Is that just a outlet tester for power
Real question is he gonna replace just the dead pack or all 4 of em
When I have a vehicle with a failed ignition coil I always recommend replacing all the ignition coils.
The only thing this tool will detect is if the wire to a coil pack is live. It will not detect the functionality of the coil pack.
Or maybe the pcm is playing around.. nightmare to diagnose
Looks like a 2 liter ford focus engine. Coil packs for this engine are cheap. Replace all of them with new ones. Change spark plugs too and your good for at least 100k miles.🤗
Ahah it is… my first thought was a first gen mazda3 or a mazda 6 of the same era with the 2.3 which is a Mazda engine also used in the focus in 2.0 form
I got one but it starts flashing as soon as I put it in the engine bay. Its way too sensitive. What can I do?
Not sure there is much you can do. Does it do it on every car
My multimeter has a ncv function, will it also work ?
@@guilhermeg345 not for that
I think it is difficult to trust this device
... What if the spark is weak? There will be a weak magnetic field. The device will show that the coil is good
...Also, what if there is a spark leak?
At first I thought it would work and after thinking I don't want to do that
It is just a quick Tester for direction
I need it. Part number or name of that tool please...
Not flashing doesn't necessarily mean the coil is at fault
Nope, the reason I use it is to get a quick direction if it flashes then I look at fuel
Good Japco tools
It’s better to just unplug the coil and use a dmm gives you accurate readings and it’s not even that hard to do either
This is not the same thing and it is not easier.
Will it work by touching the plug ? My car has 2 coul packs that run 2 holes each ?
you want to touch it around the top of the coil, maybe at each side of where the wires are and this is only a quick check that does not always work.
me out , I changed the spark plugs and wires on my 01 Carvana and after doing that my van has a ruff vibration at ideal or coming to a stop on red. I got a mechanic to clean out the threading where the spark plugs go and it keeps doing it maybe it’s the coils ? I also need an oxygen sensor maybe that will do the trick? If anyone has been in this situation help me out thanks !
Have the same issue don’t know why?
Maybe you mixed two of the spark plug wires. That would sure cause you that problem.
@@marsinbako8491 it’s gotten a little better over time still vibrates at ideal but not a constantly like before , I’m thinking it’s the 02 sensor or front engine engine mounts was told could fuel injectors can be dirty since it is 22 years old I used a lot of the STP’s fuel injectors clearers seems it’s not the case because the gas mileage was better then normal so I think there good . Have you figured out why yours vibrates?
@@elara680 was told by mechanic spark plugs and wires our good & set in correct order
My unplugging technique seems so rudimentary now…
(Sarcasm)
Nice
Do you want to buy some more of them Japco tools I have a whole bunch of them and a tool box too
$?
What the name of is where can I buy it?
@dwone38 here is a link to one
amzn.to/46OVKKC
Can new coil packs also stop the shaking in the engine due to a misfire?
If the coil is the cause of the misfire
Can all 4 coils go bad
@@jerryblanton6221 is possible but not likely all at the same time
@@NutsandBoltswithTone 225kmiled no spark from them I replaced crankshaft sensor and camshaft sensor still no start it's getting fuel no spark I believe coil packs are original 2010 Ford focus 2.0
Share A Link To The Product Please
Same thing as an ac voltage tester?
I am not exactly sure. I think it has something to do with picking up the pulses but not exactly sure. I only use it for a quick test.
Sound like money
@@DiscreetHustle naw this thing is cheap
You don't need matco. Probably several dollars over what other brands are. It's just a pen tester for checking current through cords, outlets, boards, ignition coils, etc. I do have to say tho, never thought about using on coils. That's a great idea.
Thanks
Klein Tools of the same tool for about $20
Harbor freight had it for $4.99 😂
Whats the name of the tool?
@@beereadyyy9849 ignition coil tester
@@beereadyyy9849 matco Sells them for 35. You can find the same tool but cheaper
Is it a a/c tick ? Because I can tell you the HF one is not as good as fluke and this one looks like the fluke ones
Save money pull the electrical connector. If it doesn't change. There is your issue.
Dude take my advise! That tool is not 100% accurate, sometimes the problem is vintage leaked and the tool will pick it up as a good coil because technically the coil is working, it's just the voltage not getting to the spark plug
Oh yes I'm aware of this, this is just a quick test to give me a quick direction. Thanks
Or use the same pen for house electrical 😅
I have the house electric pen.. does this really work the same?
I’m not sure either on one way find out , I bet it’s same thing even though voltage low the amperage is high
Is that squeeking sounds the washed off rings? Yup just let run.
sir i just want to ask. i have ford focus 2009 1.8l 4dr. sometimes when i start my car it miss firing ¹st to ²nd time but on the 3rd time it completely fine. no miss firing. hope u will notice and may u can help me with this issue i have.
It's very possibly an ignition coil. Is you check engine light on? Message me on Instagram and I can try to help you
@@NutsandBoltswithTone no engine light on.
Who would have taught, a voltage tester
This doesn’t work on my Prius
How much is the tool?
30 bucks. Super cheap and just gives you a quick answer
$6.99 at Walmart “Meterk” brand. Or $9.99 for the Commercial Electric (CE) brand at Homie Depot
Where we can buy this product?