How to Test an Alternator - Plus How an Alternator Works
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- Опубліковано 6 тра 2017
- In this video I am going to show you how you can easily and conclusively diagnose issues and test your alternator. I will also take an alternator apart and show you what all the different parts like the rotor, stator, rectifier and voltage regulator work and how you can fix or replace them as well.
Here are links to products which were used in this video:
Battery Load Tester: amzn.to/2qcI5vr
Battery Charger: amzn.to/2pSXDno
Multimeter: amzn.to/2p8VtRj
Aligator Clips: amzn.to/2pSPIWU
Test Light: amzn.to/2pSLpLl
Link to AlternatorMan's Channel: / alternatorman
Please Consider Supporting My Channel at : / rnw
Facebook: / ratchets2015
Twitter: / ratchets15
Instagram: / ratchetsandwrenches
Disclaimer:
Due to factors beyond the control of Ratchets and Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchets and Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Ratchets and Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchets and Wrenches. - Авто та транспорт
as a career tech, (power plant and semiconductor) you just don't get this kind of knowledge and communication from a technician very often. Fantastic video Ratchets and Wrenches! can't imagine where those dislikes came from
Doesn't matter who you are or what you say there's always a troll that will disagree just to disagree.
Great explanation
Thank you for your input. Your video was very educational and you explained everything so clearly. I appreciate that you took the time to make this video and teach some of us how we trouble shoot alternator problems. Thanks again
The best explanation of how a alternator and charge system ever. Easy no BS everyday explanation. Well done
888
I agree
Very informative thank you for sharing do have a blessed day
Yes you have the best class I've ever seen on UA-cam! 35 year diesel mechanic here
Super job! U covered all the bases. One tiny thing I might add is the one way clutch that a lot of new alternators have. A Honda Fit gave me a fit. It was slipping and not charging when heavily loaded. Sitting at idle I had 14 volts. When the fans kicked on, it wouldn't keep up. Once again, great teaching!!
could internal regulator be controlled by the computer on car? Because I replaced alternator and battery but from battery terminal i only get 12.5 if i try to disconnect the battery engine turns off.
WOW! As a engineer, this is a superb tutorial for the layman / armature. Really NICE job!!
Layman?! For anyone seeking wisdom without Attitude.
@Bruce Lee If you feel inferior in the presence of an engineer then that's your problem - not his. You need to work on your self esteem issues.
How did you become an engineer?
Sometimes those technician will fix the problem that made by shitty enggineer🤭
@@michael-xe7rz armature and amateur sound similar, so armature was an acceptable attempt at a pun.
The symbol you pointed out on the Ford diagram is actually a capacitor. It's there to absorb voltage spikes mainly to prevent radio interference and to keep the voltage output steady. This is an excellent video--very informative. Keep up the good work!
Joseph Wash Ii
Joseph Wash .....yea
Excellent video on how alternators work, troubleshooting and testing. Know you have helped many people work on their own vehicle's. I am currently working on an older vehicle for my grandson. Many thanks.
Well Done!!!!!!! I’ve been working on my own vehicles for 40 years and I still learned a lot in this video.
Your the best at explaining the subject at hand and backing that up with great editing!
I missed a lecture on this at school but your video helped me for the test I have tomorrow.
Thank you.
I like the informative demonstration here! Ive worked with alts (inside them) for quite a while and this was great.
Clearly Amazing .. I have watched so many videos on this .. Yours makes so much sense. I never once had to stop and rewind so I could listen again and again. ThankYou Crystal clear explanation!4
Most informative and precise auto repair video I have ever watched! Thank You!
2 Days from my 4th Year Heavy Duty Red seal Exam so brushing up on things - Great Video!!
Many thanks for the explanation, clear and to the point as the other vids!
Brother thank you. I absolutely hate everything electrical and all the problems! 😠 Especially intermiting one's 😤!! You just explained and showed it perfectly, simple and made it nonintimidating. You are a mechanics Mechanics🔧🔩🚗. Thank you 👍
I don't know if you'll see my comment or not, but I'd like to express my gratitude for your effort. The information provided was extremely helpful, and you delved into the subject in a detailed manner.
Thank you for your hard work. The information was very beneficial, and you went into the topic in-depth.
Wonderfully thorough video and answered my question about the two terminals on the back of the alternator. I knew one was + battery voltage to the stator and the other was to the gauge.
I have a very good understanding of how a alternator works but I must say you did a excellent job of explaining it's job and the inner workings of how it works for the average DIYer out there ! Nice !
Hey Billy R, your everywhere!
You Too ! LOL ! No I only hang out on channels where the producer actually has a brain ! And you know as well as I do that someone out there has a better way of doing things and you can always learn something knew !!
This channel is one of the best at explaining things too. See you around Billy!
Yep..totally agree. I'm YCM certified (UA-cam Certified Mechanic) because of the great videos on this channel. ;p
wil my alternator work if one diode wire is disconnected?
Wow, I 49 years of life I never thought anyone could teach me this material, bro u did an amazing job of explaining this, thank u!
Having issues with my dual battery 7.3 idi diesel charging system and I watched a ton of other videos that got me started but nothing worked and left me confused. Your explanation is much more complete and I now feel confident to give it another go tomorrow morning. Many thanks.
Very thorough and understandable explanation, right down to the details such as where to set your multimeter dial, how the alternator and voltage regulator work, etc. I already knew a lot of this stuff, but your video is an excellent refresher. Plus, I gained quite a bit of knew knowledge from the details you presented. Having the disassembled alternator was an excellent teaching tool. And, the camera work was well done. Keep up the good work - I look forward to viewing more or your instructional videos! Thank you!
😅m😅mm😅😅mm😅me my omdear loo😅😅po😅😅
Great video and explanation of how an alternator works! Great job with the diagram and taking the alternator apart to show how all of the parts work together!
I am a professional repair shop and you are making a great video that has great explanations! Great video, this is super helpful for anyone who has questions about their vehicle's electrical system! nice!
brother i have ford fiesta mk6 1.4 tdci my problem is that whenever i start the car battery warning light comes on the dash but if i fully press the throttle all the way to 5k rpm it starts charging and light goes offf , plz help me to solve this issue . this problem started when i removed the battery
Excellent video: thorough and well communicated. Thanks for educating and helping so many people!
Not only you are a professional, but and excellent instructor, your Service Videos are about the best I have seen. Thanks . Marco.
Best video I've seen so far on testing alternator/regulator/battery! You made it very easy to understand. Thanks!
You are awesome. Man, I have been looking for a thorough explanation of how to troubleshoot my charging system, and this video is, by far, the best tutorial I have found. Thank you.
I feel so dumbed down from so many other ignorant and useless videos here on UA-cam on this subject so that when I watched yours, it felt like too much information. My brain started to faze lol! This is a great video - finally someone on youtube with a comprehensive explanation about this. I actually learned something - excellent and thank you!
Great educational & informative video! Even my kids would understand this! You're an excellent teacher, well done!
Wow, that was a really thorough explanation. Thank you!
Great explanation here, I'll add this to my favs just in case. Thanks Bro!
Man!! that was the best video about alternators. You have a perfect clear knowledge about what you are talking about.
nevertheless all other are very good as well.
Thanks a lot
Awesome video. Very informative. Extremely helpful. Great explanation of working your way throughout the entire charging cycle to make clear what makes it work. Before I could only say motor spins alternator which charges the battery. I know there are a lot of wiring diagrams out there. At least now, I actually can make sense of one too. Super neat knowing what I've learned right now. I'm in the process of installing a car stereo system with multiple amplifiers and batteries. I've seen other car audio youtubers show all the "where's" to make connections but leave out the "why's" or "how" it works. I just want to learn more now. Thank you so much brother.
Congratulations for the amazing and very well explained video. Thank you very much!
Thank you for explaining this in a way I can understand, I am having issues with my electrical system and this video has helped me figure out exactly what is wrong. Many thanks again from Steve in the UK
@Bruce Lee it was the alternator, bought a reconditioned one and it's fine now.
Wow this is the most informative and best explained video on any topic I have ever seen. Thank you.
So I've known my mechanical since 1993. But not my electrical. But I'm studying ohms law and now know what amps, volts and watts are. And ohms, parallel, series circuts and how to read them. I'm buying my first multimeter today. Just the cheap $6 Walmart one for starters. So I can measure all this stuff for fun! Loving electrical. I'm building my own 700 watt solar panel system for my van conversion. 3 Lithium Ion 100 amp hr batteries in paralell. With inverter, solar controller, charge controller, BMS, Isolater, etc. Can't wait to test my deep cycle marine and alternator first with my new multimeter!
Great work...well done......nice clear explained.
Thank you very much
Cheers from Denmark 🇩🇰
Simple, clear, concise ! The best as always. Thank you.
BRO. YOU HAVE A GIFT . THANK YOU FOR BREAKING IT DOWN SO THE UNLEARNED CAN GET EDUCATED ,WOW , THANK YOU..
The best video, I ve ever seen.
Many thanks
Amazing video and with a wonderful explanation! Good job!
Thanks for explaining thoroughly about electrical system in automobiles.
Thanks for Excellent Video. If vehicle is running, you can put screw driver to back center of alternator. you will feel it is magnetized if alternator is working.
The best video I've seen on explaining this, thanks!
Great video! Thorough explanation of how an alternator works and how to test. Thank you for sharing your knowledge and expertise! God bless!
Thanks brother your videos are always well done and explained in the best details to follow along with keep it up and thanks again for the(correct way ) on your repairs.🦅
I was impressed with the amount of detail and graphics. Even so, I was hopeful that you would have talked about amperage as well. I just purchased a 270 amp alternator, and I would love to measure AMP's to ensure that it meets or comes close to the specification. You have a dog that demands that I give you a like/thumbs-up and subscribe!
Great stuff, no BS video. I am tired of other dudes, kwaking and waking all kind of BS before the actual tiny-miny information they provide. Keep it up man!!
this is outstanding. you videos over the years have really become valuable to the driveway mechanic like me.
This gentlemen give really the best explanation how things should be going on. Thank you and go bless you!
This is the best explanation I have seen on the internet. I just used your video to explain to my pre teens, as were experimenting with rebuilding an alternator.
Great explanation to a complicated product. I am subscribing to this channel for lifetime!!!
Awesome explanation on how to test, diagnose, and fix a problem with the alternator. Excellent video and thanks 😊 👍
So very clearly & well explained - Many thanks !
That was a really excellent tutorial: very informative with no waffle. Thank you very much
It's actually refreshing to watch a video that explains the SUBJECT instead of wasting most of the video on worthless chatting. Instead of youtube purging political content they should remove videos that waste a lot of time blabbing and providing incomplete or incorrect info.. We really don't need 50 videos showing the same subject.
Excellent overview with great detail on the operation and testing of an alternator!! Great Job
I really, but really don't understand what mental problem, people that disliked this video have. Good knowledge, information and hands-on equipment is shown in this video...Just editing it is hard work. I don't know what's wrong with them... don't like?? Move on
Extremely helpful, thankyou. So much better than anything else I came across on the internet.
2021 and im watching this.very helpful.I. a woman and mechanics always try to con me to buy things.Its nice to learn like this
Thank you very much for your clear and good explanation also the good tips and great camera works.
The absolute best video on youtube by far. Thank you for taking the time to make this!
Your vid helped me determine that the new alternator I got was bad. Many thanks!
Thanks to Ratchets And Wrenches for giving good information about alternator. Thanks for teaching in easy way.
Great explanation of this system. Thanks!
What a grand explanation of an auto charging system!Thank you
Yeah, you are right mentioning operation of charging warming lamp which includes both S terminal and L terminal of the same connector. These terminals which are on the same connector are often overlooked when diagnosing alternator. Relying only on reading voltage at battery terminal is not enough for thorough diagnosing, especially when issues arise during the period of charging warming lamp.
This is so good clear and to the point. I would love to more lessons on this. Please i would love to know how to identify the the cables on the alternator. Identifying the cables to know which one is for the ignition switch, for the lamp and for the battery sensing.
Best explanation brother i have ever found yet with all tests explained simply and slowly. Thanks
Excellent educational videos always. Thanks for your time efforts and research.
Damn, you are a smart man! I've taken multiple physics classes and I still don't understand this electricity Bull. Thanks for breaking it down. I just got to re-watch 10 more times
Oops! Beg my pardon if I'm wrong but Chris, did you say: (@7:09) connect the Negative(?) to the alternator POSITIVE (?) lead.... should be Positive to the positive..
I might be wrong, but I listen to you closely Cuz you are Such a Fantastic Teacher/presenter of 'How to Do' presentation and I learn how to fix my own vehicles from you..
Since I dont have a husband anymore & my sons live far alway, You help me so much I could just hug you! Thank you for your years of dedicated service for all of us! 👍🏻🤗🙏
Good info, and clearly explained. Thanks.
Best easy explanation on UA-cam ✅
Excellent presentation! Much appreciated. You're a great teacher!
Thanks for this mate, excellent work.
Excellent in depth video on alternators! Thank-You! Jim
You are a good teacher. Thank you for being thorough!
Great Video Man, Thanks a lot.
THANK YOU! I was banging my head on this problem for a week, and then found your video!Very helpful!
Here's a tale of two stories about alternators that I ran across.
The first is my GFs car. We just had the valve cover gaskets replaced after they have been leaking for a few months. I then proceeded to clean off the engine, top and bottom. I used Simple Green and a tire foam cleaner then blew off all the crud with my compressor. Her alternator was putting out 13.5 vdc to 14 vdc but after the cleaning, it stayed at 14.5 vdc.
The second was my old Pathfinder. During the winter, I started the car up and when I turned on the heater blower, it sounded like a supercharger! Then I turned on the headlights and they went super bright then blew! This Pathfinder had a wire from the output of the alternator to the positive clamp on the battery. The continuity from the alternator to the battery was bad at that connection so all the alternator output was going right back into the wiring harness. On a side note, the dealer wanted to change the whole wiring harness in the engine bay. I found an auto electric shop that changed out the positive connector for $20.
Hey, nobody ever explain this so good. Good Job Bro.
Best demonstration I’ve seen. Thanks for sharing
Excellent video. Very descriptive, makes testing an alternator very easy.
great info, I am now a subscriber. Thanks!
The best video on this subject. Thanks
Great Job explaining the different methods to test an alternator. Will definitely use this valuable info
Extremely informative!!! Thank you!!
One more vote for this being the best charging system video out there.
Outstanding and easy to understand video, expertly presented. Thank you!
excellent! Best I've seen ever. Thank you.
Very nice. Enjoy the circuit diagram, explanation of the rectifier, diodes, alternator, windings etc.
Thank you for sharing your knowledge and experience. The information you shared has made me a better at diagnostics.
Well Done!! That was an excellent instructional video. Thorough, methodical and very logical way of troubleshooting techniques that anyone can follow and adopt to any diagnosing. Very well done! I appreciate you sharing your knowledge and experience.
One of the best and most informative videos I have ever watched on YT. Very very good.
Best Alternator video EVER!! The diagram and the way you explain this is clear and easy for everyone to understand. Be sure to mention how to use those multimeters though... Thank you so much :) Subscribed. 👍👍👍👍👍👍👍👍👍👍
Best explanation I've heard so far. Easy to follow tests.
One of the best explanations. Thanks
Another great instructional video! Thanks heaps.