Understanding How To Test Voltage Drops (Part 1)

The Professor has been wanting to do this video for a long time coming and in this video he will go in depth step by step on how to best understand voltage drops. As you’ll see in the video, he has some concerns that he may have complicated things a bit at times. Please leave us feedback! We have since shot a video on a live car where you will see all of this in action. That will be uploaded later this week! We appreciate all of you and pray it helps! Enjoy!

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[alexlongpre]

The best water analogy to me is to see voltage as pressure and current as flow. Other than that, it's a very good explanation of the concept.

[supercleaner]

You're explaining what happens during a power "brown-out" in a house. Every electrical device dims or suffers equally as power is shared incrimentally according to each individual load. I'm subscribed. Thanks.

[michaelmcnicholl]

I understood the way you explained this subject really well. I have had trouble understanding electrical issues in the past and still do at times but you really clarified some basic things that help me understand drops as a whole. Thank you. I will just say that you have one thing that you do (and I do also when I get excited about explaining something) that you might think about, and that is you jump around trying to explain something and then change to a different way of explaining it easier or different. But overall great explanation for me as it really helped!

[thomasherring]

For a DIY'er, voltage drop is one of the harder things to properly understand. Thankfully, I Learned this stuff many years ago in college, and it has served me well over the years. This is one of the best explanations I've seen of it on Youtube. Kudos to you for tackling this, and explaining things that are typically very difficult for the home gamer.

[DoubleRRestorations]

Excellent video. I'm an electronics tech and you did a great job explaining this. I have never really liked mechanic work, but as complicated as cars have now become, I really enjoy troubleshooting these electrical issues that develop in them. I think you guys are very thorough. I wish there were shops in my area like yours!

[sambamcunninghamm]

This video was extremely helpful. I finished a year long automotive class at mohave community college. (Which means i have a small amount of knowledge and have read A automotive technician book) your videos helps further lock-in the knowledge and information and also lets me know the tools necessary to do a quality job! Keep up the great work!! Thank you! God Bless!

[Razor_]

Man I have watched a bunch of videos on this stuff. I work as a fleet diesel tech so I see the same equipment every day. I absolutely hate electrical for the same reasons people hate firearms- they don't understand them. If people would start with understanding Ohm's law and then move on to learning how to read a meter and what the symbols are things would start to click. I thought you did an excellent job of explaining the importance of checking both legs not just the positive. Most people think the negative side is a completely dead wire and don't truly get what the word circuit means. I was one of those guys in the beginning. Great job man. A+

[thekeeneygarage]

I think the video was good. When teaching new people, I usually describe it as a "difference" or "delta" in voltage. ie. at the B+ you have 12.6V and at B- you have 0V, the difference is 12.6V, that's why the meter says 12.6V. I use that same approach across resistors. Then later, after they get the "delta" approach, I bring up the "drop" across a resistor as opposed to starting with "drop". Either way, your video still gets the point across & I look forward to the next one.

[garymichalak]

I’ve been doing auto electric for many years, sometimes I have a hard time explaining how a circuit works, your video was the best apology I’ve ever listened to. I can now explain it to other people much easier now.
Great video, you have me as a subscriber.

[pontiacsrule]

It was extremely helpful. That part about the hills makes sense. Great job explaining

[sambamcunninghamm]

Resistance on the negative side was extremely helpful

[djmobileautoservices]

Appreciate the video Mr Sherwood. You and guys really go beyond to help techs get better

[sgtniehaus]

Great video Sherwood. I personally love to use the word current when using the water flow as an example. I even used as an example for a mechanic yesterday that couldn't figure out why he had 12 volts at the battery but no tail lights.

[mzayts]

Thanks Sherwood if I had any questions about any of that before you've cleared it all, makes it feel much easier knowing different ways to test it.

[BillyBaker-yntr]

Man, what a blessing this video was I’ve been an engine installer for 22 years shop i worked at the Owner retired and now I’m forced to learn how to Diagnose I’ve searched and search for the best description of Voltage drop trst and as soon as you did The description on the little whiteboard, it just clicked thank you guys For taking the time to teach what yall learned over the years, you guys have no idea how much people like me Appreciate these These videos!!

[andrewshedron]

If i can only pick one person to be stranded on a deserted island with I know who i would pick! Stunning!! ❤

[anthonytimperio]

Watched a ton of videos on voltage drop and just couldn’t grasp it. The hill analogy cleared up a lot. Thanks.

[brentv]

Not bad. Honestly, over the years I found out it doesn't matter how you explain it. One analogy will work for one person but not the next. Getting good hands on experience is the best and they'll finally have that "uh hah" moment after a while haha

[ThunderbirdRocket]

Tremendous tutorial !
Excellent analogies !! Clearly demonstrated and explained in simple practical terms for us in the repair shop process / issues . Thanks mate ! 👊🏼

[sollykhan]

This video has to be the BEST on Ytube regarding this elusive topic that appears to stagger the best of car electricians, i can honestly say(with deepest respect ) that every 'Gray' hair on your head has been earned with intense hard work and time consumption, Sir i salute you, please post more of these fantastic educational material, the only thing that appears to concern is why only '114' comments from 9.2K views, are people that busy or indifferent that they cannot show gratitude by posting a nice feedback for someone's effort? 🤔