Very educational for us getting ready for the A1 ASE Test! Thank you so much for making this video!
@kville5796
2 жыл бұрын
This is just up my street; very detailed and informative. Justin you're a star.
@philgray1023
4 жыл бұрын
If I had seen this during my apprenticeship I would not have become a nurse.
@اللهمصلعلىمحمدوالمحمد-ص8ت
Жыл бұрын
Why
@jameswhitbread7173
Жыл бұрын
But your saving life's so perhaps that was your true calling. Anyway it's all going electric soon
@davidfrench3657
Жыл бұрын
At least you don't have to buy tools to do your job now
@matthewdubois6792
10 ай бұрын
@@jameswhitbread7173more likely getting turkey sandwiches and ginger ale while watching heart monitors.
@871jamie
7 ай бұрын
You’re better off, being an auto tech you will eat a lot of bologna during the slow times.
@Querencias7
7 жыл бұрын
E X C E L L E N T demo, very nice setup too. Nice job indeed. Sharing your knowledge is greatly appreciated.
@mystic24100
Жыл бұрын
This is a very good explanation, wish I would have saw it 6 months ago. I like (not really) the ones that sometimes it works and sometimes not? Had the neighbors lawn mower that would not crank, no click, nothing. Bypass the switch and it worked. Never saw this before, but put in a new switch and it works every time. He comes over to pick it up and does not work!! Turn the switch on a couple more times and it works like a champ. He has used this summer, sometimes, he does have another mower. With all the safety switches there are a lot of connections to check, but once you understand the system you can find the problem.
@ifixeditmyself1926
2 жыл бұрын
This was very helpful. I'm trying to figure out the click coming from my 99 Buick century at the solenoid on the starter and this helped me to understand the starter motor a lot better. Excellent!
@sandiegorestorations877
4 жыл бұрын
Thank you for this video - I’ve watched about 10-15 different videos on this and this one was the most clear! You’ve helped me diagnose the issue with my project car!
@beanercanned9021
Жыл бұрын
Hey my car has the same problem s wire only draws 0.2 volts
@benjamin-rw8qm
2 жыл бұрын
best explanation I found online! thank you very much!
@funnyture
5 жыл бұрын
most and best lesson I had from you tube. thanks for efforts sir.
@gustavogarcia8214
4 жыл бұрын
this is a very good. explanation about how the starter work and the possible problem we can have with.and how to check it
@thomasldeanjr3337
4 жыл бұрын
This is one of the best explanations of voltage drop in a starting system I've seen. Thank you so much!
@WTFisupDennys
11 ай бұрын
Frick this is seriously the best video!
@superfluteman1
2 жыл бұрын
Doesn't get better than this. Thanks
@tuanas458
4 ай бұрын
Damn. That was mad good educational. Thanks my mans.
@stocks4bt
7 жыл бұрын
Every teacher should use a setup like this one. Visual teaching & theory is better than just teaching theory
@ndigs
4 жыл бұрын
Especially when your dealing with AUTOMOTIVE issues...
@milotorres6894
3 жыл бұрын
Troubleshooting made simple explanation helps clear the air a b c no confusion spot on same page concepts...
@kennidyulin2565
Жыл бұрын
Great video thanks for your knowledge
@spelunkerd
2 жыл бұрын
The main assumption you make when you use a device to put a load on a wire is that the device is drawing current. At 7:43, there wasn't enough energy flowing to fully close the solenoid contacts, so the main source of moving electrons comes through the relay to the S post, not through the big B+ wire. With no current on the B+wire, you haven't yet proven that wire is good, it was a failed drop test. On the other hand, if that wire was the problem we expect to see a drop. I really like your four step method, it's a way to quickly screen for wiring issues and get the job done without making a critical error. Doing it with a test light is a little faster but stands a chance of missing a problem because the light fails to detect an issue.
@JustinMillerAutomotive
2 жыл бұрын
You are right. In some cases, you may be trying to diagnose a starting system in which the starter isn't activating. While you will not be able to load the circuit without a working starter motor, you can still perform these steps to determine what the cause of the problem is. If the voltage is not dropping in the wires (even if the starter is not spinning), you can know that the wires are not the cause of the problem. Likewise, you can measure the voltage at the battery while attempting to crank the engine. Even if the starter does not spin, if the battery voltage remains high, then you can know that the battery is not the cause of the problem. It is true that you have not load tested the battery, but you can know that it is not the reason the starter is not turning on. You can load test it later, once you have found the problem with the starting system.
@spelunkerd
2 жыл бұрын
@@JustinMillerAutomotive This is first class teaching. One of the things that surprises me is how often working professionals mess this up. As much as thinking it through carefully is important, those guys need a streamlined four step check list approach, much like airline pilots use a checklist every time they get into a plane. Something that can be memorized, for a task done every day. Conventional teaching fails them because it isn't fast, there are too many options, too much thinking! ScannerDanner uses an easy four step test light algorithm, which gets a correct diagnosis about 90% of the time. The weakness is the insensitivity of the test light, especially for the final ground test.
@leonking9459
5 жыл бұрын
wish we have this in our school, students will learn a lot more than written visual aids.
@milotorres6894
3 жыл бұрын
Good explain techniques must've had a excellent teacher or degree or self taught either way much thanks for clearing the air had starer issues this helped the best by far good Man...
@milotorres6894
3 жыл бұрын
Spell check sucks .
@KamoheloPotsane
7 жыл бұрын
Been watching other videos about voltage drop in a starter motor circuit and could understand jack! Here I am bumping into this well detailed and excellently demonstrated video by Mr. Miller, now I feel like an A+ student lol, thanks Mr. Miller, in the morning I'm definately going to check my car and try to diagnose where I could be losing voltage. Thanks a lot!
@JustinMillerAutomotive
7 жыл бұрын
Thanks for the feedback! I am glad it helped you. Good luck with the car.
@milotorres6894
3 жыл бұрын
Teaching not easy same sentiments automations workings can become fickled fiasco basics fuel fire ,and air needs eases rundown electrical most important...
@iemandjwzz4614
Жыл бұрын
Absolutly great video!
@radfourrunner8840
7 жыл бұрын
Hi Justin, Thanks for this Excellent Setup and Presentation. Love your channel! One observation however... The starter relay (black module) is there so the ignition switch would not have to carry the current necessary to energize the starter solenoid (I measured 12 amps on my Toyota 4Runner). The starter relay is added to the system, so the ignition switch "start" contacts will only have to carry the low current needed to energize the starter Relay while the Relay contacts will carry the higher current needed to energize the starter solenoid (12 amps on my 1986 Toyota 4Runner). However, on your circuit the starter relay load supply is still taken from the ignition switch. This means that when ignition switch is in "start" position the current passing through the ignition switch "start" contact is: Low current to energize the starter Relay coil PLUS the approx. 12 amps needed to energize the starter Solenoid. This defeats the purpose of having the starter relay. This oversight is the cause of cranking problems on many first-generation Toyota 4Runners, and possibly other vehicles as well. Cheers! :)
@tubetime39
2 жыл бұрын
I was wondering about that relay and what it's purpose was. The relay doesn't carry the current to the starter Solenoid though,..eh? The wire from the relay carry's to the solenoid carries the current. Too bad he couldn't find where the problem was. He didn't explain that fuse or whatever between the pos batt cable going to the starter. Hmm. Confusing. Didn't explain touching meter from pos to pos either. Not the place for me to start learning car electrical. Bummer. i suppose I'll have to go through a lot more video's. Whew I wish one channel would go through from one step to the next. I can't even find a good book on it.
@tubetime39
2 жыл бұрын
PS, Nice board though 😊
@jameslancaster8391
7 жыл бұрын
Thank you for a great demonstration.
@timreeves3321
5 жыл бұрын
HI Justin, great video! I'm hoping to make a board similar to yours for my high school auto class, and was wondering if you could give me some info on how you setup the back of the board?
@sandyande
9 жыл бұрын
Explained well, many thanks, sandy
@MMGJ10
4 жыл бұрын
Awesome video. This explains everything perfectly. Thank you!
@brediaable
8 жыл бұрын
I have had a lot of trouble understanding voltage drop concept it was really troublesom for me I have been to just about every web site there is well maybe not everey one but this guy (justin miller) is the best teacher, BEST VIDEO , best explanation, of voltage drop that there is on the web and his simulator might be the reason why I don,t know but after watching his you tube video a few times I thoroughly understand voltage drop which I thought I did before but I was mistaken. This guy is a BAD ASS TEACHER I don,t care hats off to you JUSTIN MILLER THANKS A LOT
@billm5758
9 ай бұрын
Great video in telling you how to pinpoint the drop, not just a description of how it is occurring!
@RoamRight-ny6ho
8 ай бұрын
Great Video
@oriancunningham
3 жыл бұрын
great presentation, highly informative
@annumlaz
4 жыл бұрын
Excellent video to the point and easy to understand. Now, let's say the circuit components to the starter passed the voltage drop test, battery, battery positive, battery negative (ground), starter positive and solenoid positive(power). The solenoid grounds internally and provides power to the starter but the stater does not come on. Can you now do a voltage drop test on the starter to see if it has excessive internal resistance , missing volts, causing the starter's failed operation. Where would you put the leads of the DVOM on the starter and how would the readings look on the DVOM pass and fail?
@JustinMillerAutomotive
4 жыл бұрын
If you measure the voltage drop directly between the "M" terminal and the motor housing, you are measuring the voltage directly available to the motor. If your voltage is above about 9.6 volts, but the motor is not spinning, you have a problem with your motor. Most likely, the brushes are worn and need to be replaced, but it could also be an open or short in the armature windings.
@BarlitosC
3 жыл бұрын
Now to play around for 8 more hours seeing if it is an actual ground problem or the starter housing is just so corroded I can’t get a good read!!!
@j.m.5995
2 жыл бұрын
I like to place the ground wire on the actual case of the alternator to one of the mounting holes. That way it is primarily grounding itself thru that wire and not having to ground itself thru the block and anything that's grounded thru there. I avoid issues with magnetizing anything sensitive via the large inrush of initial current flow when you crank the engine
@871jamie
7 ай бұрын
My voltage drop issue on my 93 Z28 turned out to be in the starter itself. But turned out to be two bad starters. Had me scratching my head a while because two different starters had the exact same issue. Sometimes they worked and sometimes they just clicked. Off the car they worked fine but put them under a load and both did the same thing. Finally installed a remote starter to the starter with it in the car and had the same issue as using the ignition key. Bought an expensive starter and that fixed it.
@JustinMillerAutomotive
7 ай бұрын
Starters come in all quality levels! I always recommend buying "100% new" starters, never remanufactured.
@CWellman9345
5 жыл бұрын
Best explanation I have found! Great Job
@hydrationtekirrigation1451
Жыл бұрын
thank you for the light in the darkness! now I know how to use ohm readings not just for zero resistance but for voltage loss, and I understand the circuit! nice.
@JustinMillerAutomotive
Жыл бұрын
Glad it was helpful!
@blisteredthumbsdeas
6 жыл бұрын
Great vid. Clean, precise and most importantly correct
@mikeamidi522
3 жыл бұрын
Really Really wonderful demonstration. I really liked this demo.
@seshachary5580
Жыл бұрын
very educative. Thank you regards
@marinmotorsports
4 жыл бұрын
I really want to understand this. In the case of a seized starter motor..if I connect to Battery + and the 'delivery' post on the starter motor, during activation,(and presuming the path is clean) I am expecting to see ALMOST no voltage drop, as, I am 'tapping in' before the suspected load, correct? I could instantly call out the motor in this case? (and now that I'm thinking about it, a bad ground path may play a role) Thank you, your video is great!
@JustinMillerAutomotive
4 жыл бұрын
Yes. That is correct.
@alchemy1
5 жыл бұрын
So before cranking the engine at 9:44 time frame you said that the S terminal in the starter is reading full voltage. You said because it is an open circuit. How can you read anything in an open circuit? You made no sense at all. Then you said when you crank it the S terminal should go to 0 because you are closing the circuit. Nonetheless, it didn't instead you noticed a voltage drop which you considered a problem in that circuit. Something is fishy I am not buying it. First of all the S terminal should show 0, nothing before you turn the switch. Secondly, when you crank you are giving that wire power, you are not grounding it obviously. The switch is hooked up to positive terminal of the battery. Therefore it should read 12 volts at the S terminal unless some voltage drop has to be expected due to cranking. Nonetheless, something doesn't add up here. Open circuits should read ZERO. S terminal should show no power when the switch is in off or on position. The S terminal should show power when you turn the switch to the cranking/start position which is spring-loaded at the switch.
@JustinMillerAutomotive
5 жыл бұрын
I think you are confusing the concept of "voltage drop" with the idea that there is an absolute voltage level at any point in the circuit compared to zero (the negative battery terminal). You are correct that there should be zero volts at the "S" terminal when the circuit is open. However, that is not what we are doing in this video. We are measuring the voltage dropped in the circuit. If you are measuring voltage dropped between the positive battery terminal (about 10 volts during cranking) and the "S" terminal (about 9 volts during cranking), you should get a reading of about 1.0 volts. Zero volts would be ideal, meaning no voltage is dropped in the switches, relays, fuses, etc. in that circuit. I hope that makes sense!
@Michael-qt8md
4 жыл бұрын
@@JustinMillerAutomotive then how come it showed roughly 13v when you connected S terminal and battery when it was open? I am bit confused there as well. y you are not connected to ground, so how is that there was reading when it was open
@Michael-qt8md
4 жыл бұрын
unless if its short to ground? then you would get a reading , would that be right?
@bigmedge
5 жыл бұрын
1 crucial thing seems incorrect: I was always taught that voltage on the positive side (under load) should always be close to battery voltage; it's the voltage on the ground side that should be 0 or close to 0. Is this not a correct statement ?
@JustinMillerAutomotive
5 жыл бұрын
You are correct. Both the positive battery terminal and the "B" terminal on the starter solenoid should have about 12 volts. However, the DIFFERENCE in voltage between the two points should be close to 0 volts, indicating that no voltage is getting lost in the cable.
@todddra
6 жыл бұрын
Great video. I'd like to see the troubleshooting continue to find the exact problem!
@MagicNomadic
3 жыл бұрын
was thinking the same thing, 2 years after your comment.....lol.
@pablogomez7519
3 жыл бұрын
same here because that's my problem 🙄 I turn the key to the run position and no power on the wire to the S terminal
@fabianemendez5172
3 жыл бұрын
Good video... but Be nice if show the screen of the multimeter while cranking
@johnnylrico
7 жыл бұрын
What messes me up is Why is there battery voltage from the switch on the solenoid and positive terminal with everything off when there shouldn't be a ground?Why would that switch be grounded when the ignition is off?
@thugerrish
4 жыл бұрын
Thumbs up for making that thing
@ryanrepairs1235
3 жыл бұрын
Great video
@labradormcgraw
4 жыл бұрын
Neat mock-up. Makes it really easy to understand.
@vicky-nc3to
8 жыл бұрын
Porsche cayenne(tiptronic transmission) starts with ignition on + brake pedal pressed, so sometime if the engine starts without pressing brake, than is it the same problem of some safety switch in brake pedal as it is in clutch safety switch.... possibly short ?
@jdhappy7663
2 жыл бұрын
If you're getting the resistance say from negative terminal to the starter housing that mean there's a bad ground somewhere
@Micscience
2 жыл бұрын
I am a little confused when you did the (S) terminal test for the solenoid I think what you meant to say is you are missing like 2 volts and not 11 volts because the reading was 11 volts. Sorry I was just trying to make sense of what you are saying. By far you are the best at simplifying all this voltage drop so thanks for sharing.
@JustinMillerAutomotive
2 жыл бұрын
You are correct. I am not sure what I said, but that is definitely what I meant! There were about 2 volts missing at the "S" terminal compared to the positive battery terminal, which means that that those 2 volts are being dropped through some unwanted resistance somewhere between the battery and the "S" terminal.
@hoanggia2222
2 жыл бұрын
@@JustinMillerAutomotive Excuse me, I think that what you said in the video is right. You are missing 11,2 volts because the DVOM showed voltage between positive post(13,2 volts on the video) and "S" terminal, not the voltage at the "S" terminal. And the voltage at the "S" terminal is just about 2 volts compared to the negative post.
@matssigm
2 жыл бұрын
Thank you for a very good teaching. But i dont understand why the circuit still should read 12 volts when its closed ?
@Matthew-jr1xr
3 жыл бұрын
Awesome video...saved me from buying a new battery.
@nickayivor8432
2 жыл бұрын
What do you call INTELLECTUAL AND PRODIGY and SUBSTANTIAL add one more KNOWLEDGEABLE the answer is Justin Miller My teacher Thank you very helpful information video 👌 👍 Take care and have a great day PRODIGY Justin Miller From Nick Ayivor from London England UK 🇬🇧
@zeroalcohol
6 жыл бұрын
Very good explanation. Thanks for sharing.
@M_Essam
2 жыл бұрын
In my situation while the engine running the starter motor worked too ... This issue is shown the mechanic replaced the previous damaged starter, what do you think about this situation.... Does this issue comes because of a wrong installation of the starter motor ? I need your opinion about this please. More info (I have replaced the starter relay; car models m-benz ml350 4matic 2012) Thanks in advance for your kindness
@brentonpacker3291
Жыл бұрын
This is an amazing video. You must be an engineer. I love engineers!
@ericscaillet2232
4 жыл бұрын
The voltage did not drop much when he cranked the starter motor as there is no load on it,it would drop a bit more if it was installed
@davidm3210
3 жыл бұрын
Great video, thank you, If I'm not mistaken the first test determines if sufficient amperage is being delivered by the battery (when under load, of course). I seem to recall from Chris Fixx that a dip down to app. 9V (between battery terminals) is acceptable when cranking.
@JustinMillerAutomotive
3 жыл бұрын
That is correct. As a rule of thumb, when using a multimeter with min/max function, the voltage should not go below 9.6 volts during cranking. If using a lab scope, it should not go below 8.0 volts (because lab scopes are faster and capture the real minimum voltage).
@tommyboyou812100
2 жыл бұрын
@@JustinMillerAutomotive pop pop on
@KStewart-th4sk
5 жыл бұрын
Why not continuing testing to show exactly what the problem was in the circuit? I thought that was what you were going to do with your test board---introduce different problems and what the meter would indicate.
@girlcanic
4 жыл бұрын
What did you isolate to cause this problem?
@alexander0194
Жыл бұрын
Thank you for this video. Immensely helpful.
@frankdavidson9675
2 жыл бұрын
with no load on the starter what does it prove other than seeing it spin if your rig fails what do you replace i have always test the solenoid on a failure to tell where to go with tbl shooting
@JustinMillerAutomotive
2 жыл бұрын
Correct. On a vehicle, you would have more load on the starter. However, the voltage drop test is still performed just like this - and it will allow you to diagnose the problem. This board was built just so that it is easier for people to see the connections.
@nathandoering9115
9 ай бұрын
Hello Justin. I need to start off with saying this was a great video. Very informative. I was wondering if you could show the back side of the test station, how the faults are introduced, and what was used to create the faults. I would like to build this test station. Thank you!
@mannyvalero3250
Жыл бұрын
Omg 🤯 it makes sense now. I can't thank you enough....😭
@dbayboyds409
7 жыл бұрын
Fantastic. Thank you!
@howtowin.facts.7247
7 жыл бұрын
Justin miller. you sound like a guy employed by a college.. my high school auto shop teacher told me 'your not a mechanic till youve replaced 60 starters, 60 brake jobs, 60 water pumps, and 15 engines. all by yourself untill this happens your an apprentice at best'
@JustinMillerAutomotive
7 жыл бұрын
I agree--the more you practice something, the better you will get! However, I think you can figure out how to replace a starter in less than 60 attempts!! The problem is that almost anyone can learn to replace parts, but few mechanics ever learn how to diagnose the actual problem and resort to guessing. I hope you have success with your training!
@geoffroybrabant-vincent9526
5 жыл бұрын
All tests must be made with starter motor activated. That's why there is no voltage lost..
@jamesutube33
4 жыл бұрын
Great video, thank you.
@waiting4aliens
2 жыл бұрын
Thank you. Very clear, and reinforced other knowledge gained.
@antalog
7 жыл бұрын
Thank you for this. Top quality!
@peterjuhasz5143
4 жыл бұрын
Excellent vid, thank You very much!
@abcardenas35
8 ай бұрын
Thanks bro 🙏 🙌 💯
@subatomicparticle6535
3 жыл бұрын
At about 9:00 of the video the very last test being performed of the "S" terminal at the Solenoid. The multimeter is hooked up to the "S" terminal and to the battery and the author says "And right now I read battery voltage"?? I'm confused as to how you can be reading battery voltage at terminal "S" without the key being turned to the start position. If there's battery voltage at the "S" terminal with the key only in the on position and not in the start position then wouldn't the solenoid be activated turning the starter motor.
@JustinMillerAutomotive
3 жыл бұрын
It is because the other lead is on the positive battery terminal. The battery terminal has 12 volts, and the S-terminal is connected to ground through the solenoid windings. Keep in mind that a voltmeter measures a difference in voltage between the two leads. Once the solenoid circuit is complete, the S-terminal will then have 12 volts, which means that there should be almost no difference in voltage between the two leads and the meter will read close to zero. Does that make sense?
@subatomicparticle6535
3 жыл бұрын
@@JustinMillerAutomotive Thanks, my bad. I should have been watching the video more carefully as to where you were hooking up the multimeter leads and as you correctly point out the multimeter is reading battery voltage finding ground through the coil of the solenoid and once the circuit is activated are measuring the voltage drop from the battery positive terminal to the "S" terminal which should read close to "0" provided there's no resistance in the wires/connections creating a voltage drop, got it!
@Amy-ot4jg
3 жыл бұрын
Thank you so much for the video I have narrowed it down to the S terminal I'm working on a Bobcat S 205 I can't find the relay cause it is buried But we'll continue looking into that it is a push button start with a bunch of pins connected into a panel anal so I can't get to any bear wires without stripping back some of the insulated wire And when I am going to test for voltage drop at the fuse I am wondering do I just pull out the fuse and put it What pin How can I tell once again thank you so much for all of your help
@JustinMillerAutomotive
3 жыл бұрын
I hope you can find the issue! If it helps at all, I don't usually try to track a wire backwards. I just look for the next accessible place to measure voltage. At some point, as you are narrowing the problem down, you may need to actually get to the relay. I only make this suggestion because I see some people tear things apart to get to a component just to test it and find out that there is nothing wrong with it. Good luck!
@guitarplayerwannabee
2 жыл бұрын
Fantastic tutorial. Many thanks
@CarlosGarcia-tv4rk
3 жыл бұрын
Great video
@jacklassley8002
8 ай бұрын
You said the small lead to the solonoid went all the way around all the other stuff,(ignition, relay etc.) then when it became a problem, you said you can check for the voltage loss at all the points you just said that wire bypasses?? It comes from a hole in your board, and winds up at the battery, but what is its actual path, and how many stops along the way is there ? I believe that is where my problem is. Only part I haven’t replaced is the nuetral trans switch (98 E350 V10) the wire alters direction beneath motor, not going where main power goes, but unless I tear the whole harness apart, I can’t find where it separates and where it comes from and what is in between. Costing me a fortune on parts, and not working since it’s my work truck. Will my starter still click if neutral switch is bad ?
@JustinMillerAutomotive
7 ай бұрын
Your starter will not click if your neutral safety switch is bad. The neutral safety switch is required in order to get voltage to the small "s" terminal on your solenoid. If the solenoid is clicking, you likely need to check the voltage at the "B" terminal, on the ground, and on the "M" terminal to determine if the problem is in a battery cable, the solenoid, or the starter motor.
@erno9248
6 ай бұрын
Thanks...
@dittybur
4 жыл бұрын
I love voltage drop test to bad you can't get at half of starters out there to perform it lol
@camilocuervo6046
2 жыл бұрын
Alternator??
@MrUnix-cu9yy
2 жыл бұрын
This video is very informative. Thank you!
@joelarbo3425
5 жыл бұрын
This was an awesome teaching video!
@nickayivor8432
2 жыл бұрын
Good Evening Justin Miller take care and have a great day Justin Miller God bless you Justin Miller Great tutorial ❤ IT 👍 From Nick Ayivor from London England UK 🇬🇧
@paultomasi4619
5 жыл бұрын
Excellent! Very clear
@billsmith2212
Жыл бұрын
You did test between the battery POST and TERMINAL . Always try to go directly on the post if possible or be sure there isn't an excessive drop there . Always go directly on a starter battery post or solenoid post and not a tab or nut . There could be corrosion there . Great lesson .
@naseebali7973
5 жыл бұрын
Nice video sar
@1977np
Жыл бұрын
Good beginner basics troubleshooting video. In some episode maybe you could outline starter problems specifically if all those 4 measurements are ok. Thx
@iriejam2164
Жыл бұрын
Excellent video! Concise, thorough. Could you say where I can get some teaching aids to purchase for my school?
@aeriksh6873
4 жыл бұрын
These Are the details I was looking for! Awesome and thanks
@noniponipaa
8 жыл бұрын
great video
@EdWard-ji2hj
9 ай бұрын
Super useful and easy to understand. Thanks
@splash5974
5 жыл бұрын
Great video Justin! Question...I just bought a project boat. No crank, no click. Cleaned all cables, trickle charged the battery for a day, still no good. While testing continuity across some of the wiring, i noticed i have a direct path to ground at the "S" terminal, which is the trigger wire, and the large bolt opposite the "B" terminal. Which is the bolt leading into the starter motor. I remove all wires and wanted to very if it were bad wires or bad starter. The wires tested fine. I still have continuity from negative battery cable to the 2 terminals on the starter. Any ideas? Is this an internal short within the starter? Because the motor gets grounded through the case where it bolts to the block. Thank you kindly!
@saginaw60
Жыл бұрын
Have seen this before. When ya put + power to the S terminal, the solenoid should click. On some starters they do not ground to case as Justin says, they ground through the armature. So examin the end of the communator to see if there is a black burned mark where the copper wires are soldered. May be necessary to change armature.
@DeLarryfication
2 жыл бұрын
Please, do a simulation of a car alarm system whereby when the alarm is not disengaged then the car will not start. It would be pretty neat if you use the current circuit to add an alarm system.
@drjimjam1112
6 ай бұрын
Love the way this is made so simple. 4 places to check for voltage drop in the starter circuit.
@AusticHardOfHearingSinger
5 жыл бұрын
So, you have an A-Tech type board to teach testing circuits. My instryctor in college had one officiqlly labeled as A-Tech.
@acampbell198
Жыл бұрын
Great video, first time I am learning about voltage drop testing...love that!
@donaldlucas8688
5 жыл бұрын
You should do a video of how you made this setup.
@joelvillalobos4279
5 жыл бұрын
Hi Justin, I’m hoping you can help me? I’m getting a no crank no start, and when I perform your second test in this video when you attach the red lead to the body of the starter, and the negative lead to the negative battery, it starts at .3 Ma, but when I crank the engine it goes to 8.20 volts! What does this mean?
@JustinMillerAutomotive
5 жыл бұрын
This means that you have resistance in the ground circuit. It is most likely in your negative battery cable at the battery terminal, or in between the negative battery terminal and the engine block. The negative battery terminal is connected to the starter motor housing through the cable and the engine block. Because of this, they should have almost the same voltage at both places. If, when you energize the circuit, there is an 8-volt difference, you are loosing that voltage somewhere between the two voltmeter leads.
@KarasCyborg
Жыл бұрын
Few suggestions: Instead of 'tape' how about showing the actual wiring rather than have it hidden behind the board like some black box. For instance, that relay wiring is overly simplistic. There should be a pinout of the 85(-) 86(+key switch) 30 (+ to battery) 87(+relay output to solenoid) . The way it's wired on this board .... really has no purpose at all other than a simple switch that will just cause a huge voltage drop when you turn the key. Might work in a simple circuit, but if this was in a modern automobile, it would probably throw so many unclear-able codes and caused every light in the cabin to dim like a brown-out.
@JustinMillerAutomotive
Жыл бұрын
Thanks for the suggestions!
@slugg6632
Жыл бұрын
Thank you for this clear video can’t wait to troubleshoot my sisters car
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