Starter Motor and Ignition Circuit Thoroughly Explained!

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  • Опубликовано: 27 сен 2024
  • Learn how your vehicle's starter motor and ignition system circuit work, including how the ignition switch, relay and safety gearshift are wired to kick start the engine.
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Комментарии • 235

  • @fredfrancis5221
    @fredfrancis5221 9 месяцев назад +11

    Just fixed my wife's daily driver - our '74 Suburban - based on this video. Thanks much!

    • @diypotentials
      @diypotentials  9 месяцев назад +3

      That is amazing, great job! Thanks for sharing!

  • @AlabanzasyAdoración7
    @AlabanzasyAdoración7 8 месяцев назад +4

    A good teacher is the one that knows how to make others to learn and understand the easiest way.
    You're an excellent teacher, I wish I'd had people like you around me. Most of the things I had learned is on my own with God's help figuring out how things work. Not everybody has the talent and paciente to teach others, and not everybody likes to teach others what they know that gives you a plus.
    Thanks for sharing your knowledge and may God give you more. God bless you!!!

    • @diypotentials
      @diypotentials  8 месяцев назад

      Thank you so much for your kind words. Happy new year!

  • @robbonsharma6206
    @robbonsharma6206 29 дней назад

    He is a great instructor.Thank you so much, I was watching for understanding only but not a DIY guy.precious lesson.

  • @tedbastwock3810
    @tedbastwock3810 4 месяца назад +2

    I happend to already know nearly all of this, but this was still a very helpful, useful explanation to me. Thank you for making and sharing.

  • @MosesSiame-ld4ud
    @MosesSiame-ld4ud Год назад +3

    You are a very good teacher sir….

  • @johnr.803
    @johnr.803 Год назад +1

    Well done! I will watch this again many times to understand this complex system.

  • @paulmannering3831
    @paulmannering3831 Год назад +1

    FANTASTIC!!! The best most complete tutorial I have seen on the starter system. Keep up the amazing work. It's inspired me to make contraptions explaining starter, injector flow testing etc!!

    • @diypotentials
      @diypotentials  Год назад

      Awesome! I’m glad you found it helpful. I recommend posting your projects on RUclips so we may learn from you as well…Thanks so much!

    • @leahandrea3398
      @leahandrea3398 Год назад

      ~|0

  • @Cooldude-tm5rs
    @Cooldude-tm5rs 3 месяца назад

    Just trying to learn how the different parts of my motorcycle work and this is very helpful. Thank you

  • @AhmedGadd
    @AhmedGadd 9 месяцев назад

    Thank you. Always I hear stop cranking the ignition key once the engine starts but I did not know why. Thanks for your video for explaining this point and more.

    • @diypotentials
      @diypotentials  9 месяцев назад +1

      Thanks for sharing. Happy holidays!

  • @mohammadkuhinurrahman2707
    @mohammadkuhinurrahman2707 7 месяцев назад +1

    আপনাকে ধন্যবাদ এত সুন্দর করে বুঝিয়ে বলার জন্য আমাদেরকে বোঝানোর জন্য এখানে আপনাকে অনেক পরিশ্রম করতে হয়েছে

  • @asmasayyad6175
    @asmasayyad6175 9 месяцев назад +1

    You are a good physics teacher!

  • @melvis2017
    @melvis2017 Год назад +2

    Great video thanks for the good explanations. U are the man 👍

  • @NightWear21
    @NightWear21 Год назад

    This is gold. Wow, excellent explanation. I will re-watch several times. To really hammer it in my dense skull. Above and beyond, you really know your shit. much appreciation.

    • @diypotentials
      @diypotentials  Год назад

      Thanks for the kind words! Much appreciated!

  • @abdelaaladawi5701
    @abdelaaladawi5701 Год назад +1

    Great job bro . Very useful episodes
    We learn how to fix the ignition system if there is a trouble

  • @39bebechito
    @39bebechito Год назад +1

    Best ever explanation!!! Thank you.

  • @CarGalleryZa
    @CarGalleryZa 8 месяцев назад +7

    He put in all his effort to make us understand, great video

  • @patbrazil1125
    @patbrazil1125 6 месяцев назад

    Excellent explanation, best I have seen on RUclips! Well done!

  • @anthonyvee
    @anthonyvee 10 месяцев назад

    Beautifully explained and wonderful work on the example... Thank you.

  • @it5942
    @it5942 4 месяца назад +1

    Best video on this subject.

  • @pigeonpeaks
    @pigeonpeaks 5 месяцев назад +1

    Great job and helped me to understand

  • @kerrybracken2903
    @kerrybracken2903 Год назад +3

    Very good video, thanks

  • @sheriawoodard7545
    @sheriawoodard7545 29 дней назад

    Thank you that helped a lot someone took a screws out of mine and only put one back so I feel that maybe my problem how to get that screw back up in there, to be for sure thank you again thank you again

  • @sendurs7304
    @sendurs7304 Год назад +1

    Amazingly explained 👍🏻

  • @yokechan2765
    @yokechan2765 5 месяцев назад +1

    great teaching

  • @catalinbalasic2821
    @catalinbalasic2821 Год назад +2

    A fantastic video, with a fabulous presentation and explanation! Thanks!

  • @ahmedtzaki4476
    @ahmedtzaki4476 24 дня назад +1

    Awesome!
    I see this video is made for electric engineers as they understand this stuff, but I have made it out understanding almost all the ideas based on my school physics!
    Just one thing I didnt get: what is the main purpose of the small relay that is connected to both the safety switch (park/drive) and the contact key? You said it is for safety, but how?

    • @bernardocisneros4402
      @bernardocisneros4402 День назад

      No, it's made for mechanics not engineers.

    • @ahmedtzaki4476
      @ahmedtzaki4476 День назад

      @bernardocisneros4402
      Ok, you definitely know better as my knowledge in engineering specialties is very weak.
      Any answer for the question?

    • @bernardocisneros4402
      @bernardocisneros4402 День назад

      @@ahmedtzaki4476 The purpose of the starter relay in this video and the vast majority of relays is to save money on wire and switching devices. A relay uses a low current circuit to control a higher current circuit. The use of relays is not due to safety reasons. It's mostly due to economic reasons. The "neutral safety switch" is used for safety so you can only start the car in park or neutral and not in drive or reverse. If you didn't use relays, you would have to use bigger and more expensive ignition switches that can handle higher currents. You also would have to use a larger quantity of thicker wire to handle the higher currents. Using the relay you can use thin wire from ignition switch to relay control circuit pin #86 and thin wire from relay control circuit #85 to ground. Using the relay also allows you to use a smaller less expensive switch. Using the relay, the only places you have to use thicker and more expensive wire is from battery positive to relay pin #30 and from relay pin #87 to starter solenoid.

  • @doridturjman4822
    @doridturjman4822 Год назад +1

    Great explanasion!

  • @HayChhuy
    @HayChhuy Год назад

    The best comprehensive.
    Many thanks.

  • @derrickellis7748
    @derrickellis7748 8 месяцев назад +1

    man you're on point! Excellent tips I feel like I can do this now. thanks "...

  • @dylankirton1150
    @dylankirton1150 Год назад

    Thanks for going to the trouble of showing all of that 😊😊

  • @nyasha8657
    @nyasha8657 Год назад +1

    Great explanation mate, keep it up!

  • @thompsonchidi2618
    @thompsonchidi2618 Год назад +1

    Nice video, please how do connect a push button to replace the key starter in this procedure. Thanks

  • @chaoqunhuang1516
    @chaoqunhuang1516 Год назад +1

    Very good and useful video

  • @mattjewett4473
    @mattjewett4473 Месяц назад

    Thanks for the detail. It's going to help.

  • @KleoElezi-sz1rf
    @KleoElezi-sz1rf Год назад +2

    Hi there I'm a new mechanic I like the way u explain the process what I don't realize is why the starter is connected with wire that comes from alternator I'm confused

  • @vtace1
    @vtace1 Год назад +1

    This is fantastic. Based on the fact that the positive terminal connector on the battery is connected to the positive terminal on the starter, Is it possible to disconnect the positive cable from the starter, put a load on it, and charge the battery?

  • @bignick3303
    @bignick3303 Год назад +1

    Great video thank you!

  • @earthenergyhex
    @earthenergyhex Год назад +1

    wow, great instructions

  • @jonathananderson7329
    @jonathananderson7329 9 месяцев назад

    Beautifully explained 😤👌🏼

  • @jamminjamy
    @jamminjamy Год назад +1

    Great video, thx!

  • @tomference4618
    @tomference4618 6 месяцев назад +1

    Can you illustrate where an ammeter be placed in the circuit.

  • @ManuelMarrujo-u2c
    @ManuelMarrujo-u2c Год назад +1

    thank you great video

  • @birdybirdy688
    @birdybirdy688 Год назад

    Thank you Sir! I learn a lot today.

  • @TheHomeProjectsYeti
    @TheHomeProjectsYeti 2 месяца назад

    Thank you a ton boss.
    Great video

  • @shamteh88
    @shamteh88 6 месяцев назад +1

    You're amazing hats off

  • @marcjwoods
    @marcjwoods 11 месяцев назад +1

    Great job!! Thanks!

  • @anoopc9895
    @anoopc9895 Месяц назад

    Very good explanation ❤

  • @GuStavo-jk1cb
    @GuStavo-jk1cb 2 года назад

    Great video. Can you do a video on internally and externally regulated alternators? How they work and are wired…older systems like for muscle cars from the 60s.

    • @diypotentials
      @diypotentials  2 года назад

      Sounds like a very interesting video. Thanks!

  • @shanek6582
    @shanek6582 2 года назад +2

    What’s the common name for that safety switch for park? Thanks man, great video.

  • @michaelhyman3d
    @michaelhyman3d Месяц назад

    Intresting didnt know it was the trigger wire that went through the safety and relay. Explains the no click sound i have. I wonder if i can jump it by passing a wire from positive to relay with the car in park. (Well maybe netrual with a brick on the clutch lever in my case)

    • @bernardocisneros4402
      @bernardocisneros4402 День назад

      If you don't know exactly what your doing, I wouldn't do that. Most starting systems on today's cars are not as simple as his demonstration. They involve a lot more electronics. On most cars you can ruin an engine control module if you mistakenly jump the control side with battery positive to slot 85 and slot 85 is the ground side of the control circuit controlled by the ECM.

  • @KONDWANTWAYA
    @KONDWANTWAYA 2 месяца назад

    Good explanation bro

  • @PristonPokam-cx8zd
    @PristonPokam-cx8zd 4 месяца назад

    I completely understand, thanks

  • @ComfortOkema-ux3io
    @ComfortOkema-ux3io 2 месяца назад

    good lesson

  • @rudogwenzi4571
    @rudogwenzi4571 7 месяцев назад

    Good teacher

  • @leomarkmacas1497
    @leomarkmacas1497 Год назад

    WOW! Very well explained!

  • @bakernicholas123
    @bakernicholas123 7 месяцев назад

    thank you for this!

  • @j.p9935
    @j.p9935 Год назад

    Great video ! Thank you!

  • @WalusimbiKhan
    @WalusimbiKhan 4 месяца назад

    Great exposure thanks brother

  • @mabvutothewo1369
    @mabvutothewo1369 Год назад

    I enjoyed this one
    Thanks

  • @josephflores9705
    @josephflores9705 11 месяцев назад

    the relay is mostly right, the one part is always labeled 78 and 78a on a 5 pin relay

  • @HopelesslyDetermined
    @HopelesslyDetermined 2 месяца назад

    Iam very thankful ❤

  • @analizapablo1329
    @analizapablo1329 Год назад

    Sir show the complete wiring diagram of starter motor to ignition switch with start relay thank you,

  • @sastrawansastrawan5702
    @sastrawansastrawan5702 Год назад

    Awesome!. thanks for your demonstration. I know it took so much effort to do this. Very much appreciated.

  • @ChicaneMedia
    @ChicaneMedia Год назад

    Question, I understand that accessories will be on when the key is in ignition position but is there a way to only turn an accessory on only after the starter is on? So basically, on ignition position it won't turn on until only after the starter cranks the engine on.

  • @jimmyjoel3064
    @jimmyjoel3064 7 месяцев назад

    Thank you sir!

  • @OthmanBonggol
    @OthmanBonggol 2 месяца назад

    Good video bro..

  • @eleanorbanwell3478
    @eleanorbanwell3478 11 месяцев назад

    Brilliant, thank you! Did I understand correctly, when you turn the ignition key, the entire chassis becomes part of the circuit? And the chassis is connected to the -ve terminal of the battery?

    • @diypotentials
      @diypotentials  11 месяцев назад

      Yes, the chassis becomes part of the circuit. Thank you!

  • @charanjitsinghSeniorEEO
    @charanjitsinghSeniorEEO 5 месяцев назад

    What is I and R marking on DC 24V starter, Two main terminal are there for connecting+ and - from battery.

  • @briantm488
    @briantm488 10 месяцев назад

    Great explanation

  • @yakobwakjera2102
    @yakobwakjera2102 9 месяцев назад

    I learned a lot

  • @treztrez8660
    @treztrez8660 4 месяца назад

    Thank you brother

  • @janmichaellawas776
    @janmichaellawas776 2 месяца назад

    What size of wire you use, that thicker wire for starter motor

  • @jaymausantos
    @jaymausantos Год назад +1

    Nice video! I have a quick question. I replaced my starter on my 94 bmw 325i thinking that I have a bad starter. I checked the battery is good, starter is good, relay is good… but sometimes it won’t start. I bypass my ignition switch and used a push start. Everything works fine but sometimes it won’t start. I read online that it maybe the wire coming from my relay to the starter is bad or corroded… can I just simply put a 12 volts to the starter solenoid so when I push start the car it will start? Thanks in advance

    • @diypotentials
      @diypotentials  Год назад

      HeyJay, I don’t recommend doing that because solenoid is already connected to a 12volts. It might be that the ground wires are loosened or rusted…That would be something I would check next …Thanks!

  • @BnisonkiHiikhanii-vi4pk
    @BnisonkiHiikhanii-vi4pk 3 месяца назад

    Battery is good, what would be the problem in my car can't start even in jump start.

  • @bill_de7206
    @bill_de7206 4 месяца назад

    Fantastic!

  • @HEARTNHUSTLESTUDIOS
    @HEARTNHUSTLESTUDIOS 8 месяцев назад

    Thanks!

  • @DicksonMulamata
    @DicksonMulamata 2 месяца назад

    Enjoyed the lesson

  • @hanslerche2073
    @hanslerche2073 6 месяцев назад

    Yes Yes thanks for that super .

  • @han-eihan2145
    @han-eihan2145 11 месяцев назад +3

    You are at a college instructor level, at least. Thanks.

  • @reginaldoar-jio9413
    @reginaldoar-jio9413 Год назад

    thank you i love you so much

  • @JacobEwing-o1p
    @JacobEwing-o1p Год назад

    Great explanation and visual!!

  • @philipdickson3923
    @philipdickson3923 Год назад

    Fantastic..

  • @josen6546
    @josen6546 Год назад

    Excellent video, thanks. Can I ask you, looking in the relay if you don't have a good ground from battery to the relay where you have 4 cables to the relay itself you still can give power to the cable that goes to the started ? Thanks.

    • @diypotentials
      @diypotentials  Год назад

      The electricity has to make a complete circuit, from the positive terminal to the negative terminal. If the pathway is blocked, it will not provide electricity to the starter…Thanks!

  • @ketbum
    @ketbum Год назад

    My car pilot 2012 it has two starter relays, when I crank start the car I don’t get any voltage come out to starter solenoid. I look for starter wiring diagram but can’t find any. Any one can help me please.
    I tested both starter relays working but when crank start only one click the other is not

  • @kingpete3160
    @kingpete3160 2 месяца назад

    What happens if the battery kinda low

  • @trounbyfire
    @trounbyfire Месяц назад

    I have voltage on both wires touching starter... I don't think i should

  • @mooremaceo
    @mooremaceo Год назад

    Safety gear? Usually called a "Neutral Safety Switch" or "Park Position Switch". Good vid though!

    • @diypotentials
      @diypotentials  Год назад

      Thanks for the additional information. Best!

  • @anussqadeer3181
    @anussqadeer3181 Год назад +1

    When I turn my key sometimes the starter motor works and sometimes doesn't

    • @Sackifshi
      @Sackifshi 2 месяца назад

      I know what's wrong with it ain't got no gas in it 😂

  • @ZareNiksa
    @ZareNiksa 10 месяцев назад

    Can bad starter cause no ignition power no dashboard lights no radio nothing or what else can be a problem the fuse for ignition is good

    • @alberoDiSpazio
      @alberoDiSpazio 8 месяцев назад

      Bad battery?
      My engine wouldn't crank, there was no 'clicking' associated with the solenoid but my headlights and dashboard worked.

  • @kenlelon369
    @kenlelon369 Год назад +2

    my 66 chevy keeps running after you turn the key off. (?)

    • @575gtcFerrari
      @575gtcFerrari Год назад

      Damn...well good luck

    • @575gtcFerrari
      @575gtcFerrari Год назад

      If it lasts longer than 2 hours, I'd see a dr

    • @David-iw6ce
      @David-iw6ce Год назад +1

      It's your ignition switch and those other comments aren't necessary the guys trying to fix his car

    • @kenlelon369
      @kenlelon369 Год назад

      @@David-iw6ce Changed switch, prob still there but not as often. It eventually turns off, also sometimes clicks instead of starting. Always works, sooner or later

    • @tmchango
      @tmchango Год назад

      Your engine sounds like it's dieseling, I have witnessed the same issue with SBC's, it's a timing issue typically, check your valve train.

  • @roumelvalero6688
    @roumelvalero6688 6 месяцев назад

    gets!

  • @JesusSanchez-bw8ue
    @JesusSanchez-bw8ue 3 месяца назад

    I have a 06 gto. I thought my starter went out so I swapped it out, but got the new part in and it didn’t work. I was able to get the starter to engage by touching a socket extension onto the two terminals onto the starter, with the key on the on position the car started.
    When I turn the key, the starter relay clicks. Does that mean from the relay to the starter something is wrong?
    I’m kinda broke so I’m not able to pay someone to figure it out for me 😭

  • @alberoDiSpazio
    @alberoDiSpazio 8 месяцев назад

    Title says "Starter Motor and Ignition Circuit" but I don't see any ignition coils, breakers, distributors, or spark plugs.

    • @dale_agameroftheworstgen
      @dale_agameroftheworstgen 4 месяца назад

      He wasn't saying it as "starter, motor, and ignition circuit" like you seem to think. He was talking about a singular part of a vehicle. Lol. However, I acctually do understand how much it sucks to click on a RUclips video that seems like the thing your desperately looking for but unfortunately isn't ..... RUclips is the one to blame for that happening though, it's an interactive AI that does that to people on purpose.

  • @mangetgabriel5397
    @mangetgabriel5397 Месяц назад

    Great teaching

  • @dominiomo
    @dominiomo 5 месяцев назад +3

    Great teaching good Job I have learn from your teaching

  • @KayMelaw23
    @KayMelaw23 Год назад

    Thank you 👊🏽

  • @johnbarber257
    @johnbarber257 6 месяцев назад +2

    DONT UNDERSTAND the three wires going into ignition switch ? power into ignition goes on B as in from battery. S on ignition switch goes to 30 on relay . But which terminal on ignition does wire from 86 on relay go ? You keep saying ignition but which terminal ? If the ignition has B battery S start solenoid G ground and A/L acessories / lights then is it the A/L or the G ? I am guessing A/L because G ground does not seem right to me .

  • @umarmurtala5572
    @umarmurtala5572 Год назад +2

    Very detailed explanation. Keep it up.

  • @davew6949
    @davew6949 Год назад +2

    Excellent teaching video!

  • @PeterBwalya-c9m
    @PeterBwalya-c9m 2 месяца назад +1

    Great 👍