Using Ohm's law to diagnose a car

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In this video we diagnose a Car/Van using Ohm's Law.
I'll show a quick,easy and safe way to test glow plugs.
The wiring Diagrams used in the video;
www.diagnosexl.nl/
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Ireland/UK
www.ryansautomotive.ie/
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(Not for technical questions)

[@peterb7789]

Your a natural born teacher Dan, your videos should be part of every auto shop/Vocational curriculum.

[@Diagnosedan]

Thanks Peter!👍

[@rocketdunn2047]

@@Diagnosedan ķ

[@markwatson2814]

I agree with you

[@rocketdunn2047]

P

[@daytonalvaro258]

i dont mean to be offtopic but does any of you know a method to get back into an instagram account..? I stupidly forgot my password. I would appreciate any assistance you can offer me!

[@joolsgrudgings5776]

Hi Dan great video. Dan it is worth mentioning that the power probe test - feeding a glow plug with a constant 12v would destroy some types of glow plug out there as they are only designed to be fed a pulse width modulated power supply only and will burn out in a matter of 5 or 6 seconds. again excellent video

[@Diagnosedan]

Yes, your right.

[@marksantos2276]

Literally like attending the best school there is on how to chart/follow/fix electrical etc. LOVE this channel

[@maximolopezsr9399]

Dan I am a old mechanic ,now I just doing Aircraft engine , but I enjoy watching you and your videos thanks

[@michaelmerta8956]

I'm an 73year fellow and diagnose Dan is my favorite show I'm watching him always to learn every time something's new.

[@terrycrews2281]

welcome

[@mohygen2882]

Your application of ohms law was spot on. Thank you for explaining how glow plugs worked and how to trouble shoot them.

[@exmotorsports]

Great Job as always Dan.. Ohms Law for the win. 😀 In my electronics class (36 years ago now) I was taught to use this in a pie. V over(divided by) I times R. It also works for wattage P over I times V. Just makes it easier to visualize the math needed to accomplish the variable your wanting to know. Love your videos Dan..Keep up the great work. Cheers

[@Diagnosedan]

The Pizza 😉

[@jayrock9742]

I work for a bmw dealership and have been searching for videos like yours for a while thank you

[@fascistpedant758]

I like that you use the term "path to ground". It clearly expresses an important concept for people learning about electricity. It may also be useful to introduce the term "conductivity". Many people have never studied basic electricity and find the concept of resistance mysterious. Resistance measurements can be misleading, especially on circuits with glow plugs, heaters, or lights. Current does not lie. Thanks for another good video.

[@Diagnosedan]

Thanks for the feedback!👍

[@unclemarksdiyauto]

Great explanation. You would have been a great school teacher. For the rest of us, your simply presentation is logical to follow. (Math was never my strong point) Thanks again!

[@Diagnosedan]

Thanks for watching my video's it's appreciated, and for the great comment!😊👍

[@grzegorzbobowik1361]

Before testing the glow plug i always check the voltage in description, it's 5V and 12V glow plugs in different cars. Great video like always👍

[@Diagnosedan]

Thanks!

[@joshuahodgins]

I always learn so much from your videos. I especially love your diagnostic approach, and time to correctly diagnose the problem, rather than just throwing random parts at it!

[@Diagnosedan]

Thanks Joshua!

[@TheKeenMechanic]

You are the best. My favourite channel of all times

[@vincentmagari5038]

I was only a mechanic but ever since I started following your video I am gaining electrical knowledge. Thank alot.

[@wyattoneable]

I love the animation and the description of the steps you took. Each test was easy to understand and the visuals of the differences between good and bad were really helpful. A really good video Dan. Thank you.

[@Diagnosedan]

Thanks! It's appreciated!👍👍

[@WouterB76]

Explained in a very clear way, and allready steen some other video's of yours, i find them very educational!

[@promischristodoulou3681]

What I really enjoy is watching the processes. As a technician of over 30 years I would have or at least should have come to the same result but it's a joy to watch Dan doing his thing and the way he explains the what and the why. And I get to learn a little. Cheers

[@Diagnosedan]

That's a great comment!👍👍

[@princeclive1913]

Dan is a very good teacher I love him he taught me. A lot

[@Diagnosedan]

😊👍

[@jeffmartin9248]

Great video Dan, thank you on showing the use of testing tools , showing how the sensor work and explaining the wiring system.. Plus how to test the system and to never be just throwing parts, to test....test...test...all ways. Thank you again Jeff

[@Diagnosedan]

Thanks Jeff!👍

[@sportshatch]

As always Dan , a great video with very clear explanation . Nobody does it better. Thanks.

[@Diagnosedan]

Wow thanks for the nice comment!👍

[@souhailbouallegui7858]

RESPECT for you Dan i learn too much fron your videos . Pleaese dont stop teaching us .

[@PaulysAuto]

Ohm's Law and basic Algebra brought to you by DiagnoseDan...awesome! What an absolutely amazing video Dan!!!

[@Diagnosedan]

Thank you very much!👍

[@brendanmccabe8769]

Really lovin’ these videos, you have an excellent delivery style matched by your logical diagnostic approach and obvious subject matter knowledge. Where I think you really score is when a test doesn’t give you the result you expect you keep at it, rethink using the new evidence and go round the loop again, most seem to give up at that stage.

[@marioperez460]

Great video Dan.every time you make a new video I learn something new. I want to tell you something Dan . you are the best person that I know doing diagnostics on cars . I'm really appreciate your help god bless you.DAN.

[@Diagnosedan]

Thanks Mario👍👍👍

[@richboro1]

Great Video. It's great that you include every detail including how you connect your test equipment other's videos tend to fall short there but yours are always thorough. Thank you

[@Diagnosedan]

Thank you!👍

[@marks7352]

My 92 diesel the control module always went out so I by passed it and installed a push button over 10 years ago and I have never replaced another glow plug. I was always curious what size of relay switch to use so I put in a 70 or 100 amp. I test my plugs once a year with a test light.... Glad I found this video. This is #3 video I've watched of you today.... Your teaching me... Thanx

[@Diagnosedan]

Thanks for watching my video's it's appreciated

[@TTRVision]

... as I deleted the EGR system on my car , I loosed the EGR cooler together with his cold start engine initial warm phase which was very useful to speed up the engine warming process. to compensate this I mounted an supplementary heater , a glow plug heater system (with small glow plugs) and I have calculated and monitored the current consumption just like this! very good info and very good and simple explained! thank you Dan and all the best! always a pleasure watching your content! Top Job! and .... I see that you are using mainly US tools :) good one , pro items!

[@Diagnosedan]

Thanks for the great comment!😊

[@rogwrench]

Excellent diagnostic video ! Great way to pinpoint a bad glow plugs without need for quite expensive scanners and or equipment........thank you Dan !

[@GeorgeJFW]

Seriously so happy I found this channel it's nice to bush up on the basic stuff. Thanks for taking the time and putting in the effort to make these video's!!!

[@Diagnosedan]

Thanks for watching my video's it's appreciated!

[@alistairpowers8129]

Great video as always Dan, the old fundementals like Ohm's law never fail, components do.

[@Diagnosedan]

🤣🤣👍👍

[@vodonnell1]

You never cease to impress me Dan, good work.

[@Diagnosedan]

Thanks!👍👍👍💪💪💪

[@tonywebb9909]

Thanks Dan, your algebra took me right back to college! It's a simple problem to solve with maths, until the the plug snaps off in the head. Most mechanics just tap the plug tip with a battery positive lead and look for a little spark! Thanks again

[@hassanal-herbi8439]

many thanks Dan for all the most educational videos. you make ingineering very easy!

[@AHairyBiker]

Been holding off buying a separate amp clamp, relying on my Fluke for ages now. But now, I have decided, my next spare bit of spending money, I'm getting a DC capable Amp Clamp with it's own read out. Thanks Dan. Once again, you have shown me the way.

[@davesterl]

Ive a vid on amp clamps

[@Diagnosedan]

I really love how you can measure without disassembling anything

[@davesterl]

@@Diagnosedan cheers danny

[@AHairyBiker]

More a case of older systems using just the one lead from the relay to power all the pre heaters in the stuff I'm used to working on, I have an old "clip on" Amp clamp thing that I bought from Mac Tools in about 1996 that I still use, but it's not able to measure each lead, only really the larger cables, and it's a "Swingometer" thing as well. Just time I updated. I like getting my money's worth out of kit... I still have Whitworth spanners from when I used to work on Jaguar XK120's... The ability to measure current draw from just one component is going to be useful. Thanks again Dan.

[@AHairyBiker]

Where?

[@robmartin5442]

I like your explanation of how the system works and then how to diagnose it. Thank You! for sharing your wisdom.

[@Diagnosedan]

Thanks for watching my video's it's appreciated Rob!

[@mitchharrison435]

Great video, Dan! I drive a Ford with a 6.0 Powerstroke engine. Glow plugs and EGR coolers are some of the most discussed systems in the forums. So I found this very interesting. Keep up the good work.

[@Diagnosedan]

I hope the video helps!

[@ericwhel]

Fantastic information videos, I’m a motorcycle mechanic and these tutorials are extremely helpful.. Greetings from Ireland. Eric

[@Diagnosedan]

Thanks Eric!

[@mansorabdallah8617]

That's a nice job! Check and then a mathematical analysis of the check to confirm it.. this is the correct diagnosis. Thanks Dan

[@gargavall1050]

As always, detailed and educative. Thanks for your effort Dan!

[@Diagnosedan]

👍👍

[@grumpysgarage4790]

Another great diagnostic video. Thank you for making them as I know it takes a tremendous amount of time to produce them. 👍🏻

[@Diagnosedan]

It does😉

[@RANGOArts]

best teacher ever. i love your channel and i've been recommending everybody to subscribe to it. you deserve the best ❤❤❤

[@soranghafour]

Great success dan , well presented and top route on finding fault easily and accurately.

[@Diagnosedan]

Thank you!

[@richardowen2159]

Great vid. Yeah,a real bugger when they snap,or when you know they are not for shifting... Have shed many a tear over merc engines !

[@fire7765]

I like your attention to details and explaining exactly what you are doing, thx for sharing.

[@Diagnosedan]

Thanks!

[@christesta7553]

Excellent video Dan!!! Very easy to understand your explanation on diagnosing the glow plugs.

[@smithstjohn929]

you the best dan i watch your video every day before an after work

[@Diagnosedan]

That's awsome!

[@herrkiwi3110]

Another great video Dan , and yes a broken/seized glow plug is NO fun to remove !!!! Love that Snap On amp/clamp meter !!!! Thanks.

[@usman_oz]

Thx for your efforts in explaining all this stuff and in a logical way.

[@Diagnosedan]

Your welcome!👍

[@comingundone27]

Very good video sir. I appreciate the time you take to teach!

[@Diagnosedan]

Thanks no problem!

[@davids7273]

Awesome video, with an excellent practical application of basic electrical principles. Thank you!

[@exxicom]

You are a Diagnose Master !. Period. Incredible Videos... Keep Going !! Congratulations !..

[@Diagnosedan]

Thanks Manuel!

[@gonzgarr1592]

you are a great teacher and master mechanic learning a lot from you thank you so much

[@Diagnosedan]

Your welcome!

[@bidyutsaikia7511]

You are doing a great job Dan..Appreciate it..keep it up..I am big fan yours from India 😊😊

[@Diagnosedan]

Thanks!👍👍

[@codysautodiagnosticsprogra8706]

Great video like always Dan! Great example of ohms law and how to calculate it.

[@Diagnosedan]

😊😊👍👍

[@scientist100]

Thank you for sharing; you're a natural talented instructor.

[@amanorebenezer1704]

Dan thanks a lot for your training videos I really enjoy watching and learning from you, great job and keep on educating us I want to be like you to train others thanks again sir.

[@Diagnosedan]

Please share your knowledge!

[@geraldfiorello6231]

I just found your KZbin channel and love it Dan keep up the great work love the videos your teaching tools are great.

[@AkbarRazaa]

The way you explain the problems I love it keep it up

[@chamalka7132]

Simple and interesting explanation method. Keep it up Dan. I love your videos.

[@Diagnosedan]

Thank you very much!

[@edgarsedgars1549]

Your brain + your tools = nothing is impossible :) Thanks! If it's easy to reach the plugs i go easy way with beeper ;)

[@Diagnosedan]

😊😊👍👍

[@nicknicu1787]

Great job professor! 👍 I know you put a lot of work in these videos!

[@Diagnosedan]

I do!😊👍

[@mckoylach1622]

Dan,you’re the man....I wish you’re living in the US,so I can work with you to gain more knowledge,thanks

[@Diagnosedan]

Thanks!😊👍

[@cbarkwell1000]

Dan ís a "First Class" Auto Technician Your "2nd Chance" may be from Dallas,Texas www.veejer.com "Electrical Shortcuts" - First "First Things First" - Second "VET" - Vehicle Electronics Technician Course Read the Comments section. This Address ís no joke.

[@mekanchapykov2102]

Nice JobnDan! Best explanation of every issue!!!

[@sirsweetness8332]

I had always wanted to know about the glow plug system. Very good video.

[@Diagnosedan]

I knew you did! I made this video especially for you!🤣🤣👍👍

[@sirsweetness8332]

DiagnoseDan I actually did. Been researching Diesel engines and recently purchased a diesel truck. 6 months ago

[@youtuperyou25]

One of the best mechanic ❤

[@joekuntzman4016]

excellent video Dan! thank you for the clear explanation, and a nice illustration of ohms law. I don't do much diesel work, it was cool to see the glow plug heat up in the bonus footage :)

[@Diagnosedan]

Thanks Joe!

[@billkollios6086]

I really enjoy all your videos will keep watching every day thanks Dan your the best at explainig everything clearly go Dan

[@ThunderbirdRocket]

Excellent tutorial ! Fantastic teaching techniques !! Thanks I really appreciate it . 👊🏼

[@crumplezone1]

Diagnose Dan using ohms law fixed it agan` :) Man I wish we had had KZbin in the 80s :(

[@AHairyBiker]

Sory it took the old farts of my generation so long to get it working for the youngsters.

[@pyotyrprepka1875]

Not really. Ohm meter test still works. Can check each one with wire off. In old days manual switch on dash to press and hold to turn on before starting. Dead glow plug means hard to start in cold weather.

[@tam1381]

Excellent tutorial Dan as usual.

[@Diagnosedan]

Thanks Tam😊

[@billyyoder8171]

Thank you Dan. Good job. I appreciate your videos. Have a blessed and safe week.

[@Diagnosedan]

Billy thanks for the nice comments on every video!👍👍

[@harrywilson4311]

Great video dan, no guessing 100% fix. Top work!

[@Diagnosedan]

Thank you very much!

[@daviddasilva4897]

Great video on ohms law,fundamental to troubleshoot,thanks Dan

[@Diagnosedan]

Sience for the win!😊

[@sabergermd]

I always learn something new from your videos. Well done.

[@Diagnosedan]

Thanks Scott

[@tommarshall8110]

Another great video, Dan! That amp clamp is nice!

[@Diagnosedan]

I love it!😊

[@f.k.burnham8491]

I liked your troubleshooting methods.. Thanks for an informative video.

[@Diagnosedan]

😊😊👍👍

[@henrytav]

Very nice video Dan. Thank you! What we have seen around my area is not qualified mechanics to execute simple tests like those you performed. They grab their scan tool to look for a code and when they find the one they replace the part. Than, the code comes back and they are lost. They are parts replacers. You did a great job explaining the logic of how the glow plug system works. Again, thank you for educating people! PS. 1-Nice tools! I am a Fluke multimeter lover, but I have to agree those Snap-on meters’ displays are very nice. 2-I hate Fiat!

[@Diagnosedan]

I also like tools and I'm also not a Fiat person.😉

[@MichaelTwigg-ip6qc]

Love all the videos DAN you’re the MAN.

[@sashodishliev711]

You are the best Dan thanks for all videos!!!

[@kellyspeppers]

Another excellent video, always very easy to understand.

[@Diagnosedan]

Thank you!👍👍

[@commercial777]

Great video Dan a lot of the basics are often forgotten

[@Diagnosedan]

Yes, your right!

[@haroldb8642]

As always great content and a learning opportunity for all who are willing to apply the free knowledge. THX

[@Diagnosedan]

Thanks for the great comment!👍👍

[@brianwalls1090]

Dan you are the MAN!! Thanks buddy for all the great videos!

[@Diagnosedan]

😊😊👍👍

[@CubasAutomotive]

Congrats to Dennis & Peter!! The winners of the tools! This is a great video Dan. I still have issues using ohm or calculations in general. Once again, the lack of use or practice plays a huge part. Another fantastic video my friend!! 👍👍😊🤗

[@fascistpedant758]

I know what you mean by "the lack of use or practice plays a huge part". I learned quite a bit of Spanish ~30 years ago, but despite reviewing every couple of years, having no one to practice with, I still couldn't hold a conversation. I wouldn't want to seem pedant, and the YT comment section isn't the ideal place for a course in electricity, but if you have a specific question concerning ohms law, I'd be glad to try to help.

[@Diagnosedan]

Thank you very much Cuba!👍👍

[@mrgrumpy5116]

really good use of the clamp meter, thanks for another good tip

[@trevorb7808]

Dan's the Man! Thanks for the great lesson.

[@Diagnosedan]

Thanks Trevor!😊

[@catfish7774]

Thank you for your videos they very helpful thanks again for your time and service the videos helping me out with a lot of stuff on vehicles thank you DiagnoseDan God bless you all

[@burnsm2012]

Awesome vid. Goes over the law of resistance in Parallel with the law of reciprocals

[@forestchannel6559]

Hi Dan I am thinking of open my own garage.I have been watching almost all your vedeos.God bless you man.Great healp.

[@angelsantana3290]

Excellent, thanks for your videos and knowledge.

[@larrysomers274]

Another Awesome video as always Dan and thank you for taking the time to make them, as for any giveaways in my opinion i think we are all winners for you sharing your knowledge

[@Diagnosedan]

Aaaaaaahhhh that's a Nice thing to say! Thank you😊😊👍👍

[@javierosorio5169]

Very good instructor . Thank you sir.

[@youssefzegari1618]

One of the best in this world 🌎

[@williammorris7029]

Great test and easy way to check the amp draw, fantastic Dan

[@Diagnosedan]

Thanks William!

[@thelostangler1938]

Thnx for all the knowledge you share!

[@mylady6199]

I have been watching your videos for a long time and I like it very much

[@Diagnosedan]

Thank you Robert!😊

[@romadape1389]

you're asking if i like your video ? No, i love it :) it's absolutely awesome :)

[@leonardojaimessalinas1660]

Como siempre excelente explicación, una metodología muy sencilla de entender, gracias

[@garrynutter860]

Nice one Dan, very interesting with the Ohms Law. Looks like there was not much headroom for that 50amp fuse. Keep them coming..

[@Diagnosedan]

The Max current draw is very brief!