Here's how you are killing the ALTERNATOR in your car

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  • Опубликовано: 24 ноя 2024

Комментарии • 178

  • @indridcold8433
    @indridcold8433 17 дней назад +114

    I have had my vehicle for 29 years. The alternator has never failed. I have been told it is because it is a Denso alternator.

    • @omahanprabla3058
      @omahanprabla3058 17 дней назад +12

      Don't doubt it one bit, mine is denso as well, I think life is extended too by their position, if they get too hot or are protected well from the elements.

    • @nikolay9584
      @nikolay9584 16 дней назад

      My Denso had rectifier replace 3 times and counting just because it can't produce enuf power for forelights and charging under 2000 RPM.

    • @DGQ1Q2
      @DGQ1Q2 16 дней назад +1

      I am very impress

    • @68orangecrate26
      @68orangecrate26 16 дней назад +18

      It was assembled 29 years ago… Before everything manufactured turned to garbage.

    • @PistonAvatarGuy
      @PistonAvatarGuy 16 дней назад +8

      Yup, I've always had old, high mileage Hondas, never had a Denso alternator fail. The one alternator that failed in a Honda that I maintained was not a Denso. That car did have over 200k miles on it, though.

  • @djnor1979
    @djnor1979 16 дней назад +24

    Absolutely correct video, i would add one thing:
    You are not just making your alternator work harder with a half dead battery, but due to significant power losses, your fuel consumption will increase as well, significantly! (Talking about adding up to an extra liter every 100km - own experience)

    • @indridcold8433
      @indridcold8433 15 дней назад +5

      @@djnor1979 Yes, indeed. If you have a more modernised vehicle, the antilock brake light, and traction control light, will turn on, as well. On even more new vehicles, the check engine light and transmission light will turn on as well. All this is also including the battery light, or alternator light. It seems excessive. But the sensors need specific voltages to work properly. It is not like the old mechanical actuators that could trigger and any voltage.

  • @veronicahawthorne3452
    @veronicahawthorne3452 15 дней назад +39

    I drive a 1993 Toyota Camry. My alternator final went after driving her 23 years. It was the original alternator from 1993. Same with my a/c compressor I just replaced. Cannot kill the older Camrys!

    • @crand20033
      @crand20033 14 дней назад +1

      You can if you wait 23 years. 🤣

  • @jeffreyread2055
    @jeffreyread2055 11 дней назад +14

    Spot on mate.
    As a battery distributor all I can say is, clients who thinks that they are smarter than the battery tester will definately run into electrical issues with their alternator at a much faster rate compared to clients who follows what the tester shows.

    • @ewicky
      @ewicky 6 дней назад +8

      My favorite is when the fancy battery tester shows a battery is healthy but an actual load test with a real load tester reveals the truth.

  • @TheThunderwars
    @TheThunderwars 17 дней назад +44

    Classical issue is a bad engine to ground wire. Alternator are grounded using the engine, which is grounded using the engine to ground cable. It causes low voltage once you need any load and another symptom is a hard start even though the battery is full because the starter is also grounded through the engine. Replacing or cleaning the connection wil solve this.

    • @djnor1979
      @djnor1979 16 дней назад +10

      This is absolutely true. Battery is grounded to the Chassis, so does Engine at a different location, in many cars.
      To help your aging car's electrical system to function properly, i would highly recommend installing an extra ground cable between the battery and the engine, as this will significantly improve both the engine start and the battery charge. And do not be cheap on the copper, any undersized cable will be just another resistance on the circuit which will consume power! In case of difficult engine start, always measure the voltage drop on the ground between the battery and the engine, you will be surprised to see how much voltage you can lose on those aging ground cables ...

    • @indridcold8433
      @indridcold8433 15 дней назад +1

      @@TheThunderwars if something like a bonnet, or bumper comes ungrounded, the radio makes horrible sounds due to sparks from the sparkplugs. The bonnet, or bumper, behaves like an antenna, picking up the spark noise. The radio antenna is, close to the bonnet, or bumper, and it picks up the signal from the bonnet, or bumper.

    • @gabrielvieira6529
      @gabrielvieira6529 15 дней назад

      My car temp gauge wacks because of that bad mass

    • @8avexp
      @8avexp 15 дней назад +4

      On my '88 Jeep Cherokee and '69 AMX, the negative battery cable is connected directly to the engine block. That AMX has only a factory radio and heater and not much else, and a 35-amp alternator.

    • @indridcold8433
      @indridcold8433 14 дней назад

      @8avexp I have a 1997 Jeep Wrangler I bought in mid 1996. It has heat, and a radio with cassette. It has no antilock brakes, no power windows, no power seats, no power door locks, no power mirrors, no power brake assist, no lane departure warning, no lane departed assist, no auto stop, no auto pilot, no automatic transmission, no auto clutch, no auto headlights, no auto wipers, no auto dim mirrors, no side warnings, no cameras, no internet, no touch screens, no roof, no crank windows, no steering wheel radio controls, no heated seats, no heated steering wheel, no auto high beams, no traction control the way modern vehicles have it, no four cylinder engine, no driving computer, no reverse sensors, no sway control, no flimsy independent suspension, no belly dragging lack of ground clearance, no push button 4x4, no driving modes, no mouse, to voice control, no bluetooth, no glass windows, no digital speedometer, no eco anything at all, no electronic parking brake, no built in child safety seat, no info'tainment center, no road condition sensing, no GPS, and especially no engine auto stop and start, engine killing, design flaw. This is why it currently has 448,000 miles in the original drivetrain. There is no way modern garbage could make to 29 years without extensive repairs. I know this. I work on a sales fleet for work. Toyota is just about the only good vehicle left, and it is starting to become over engineered which will mark the downfall of its reliability soon. The more I work on the new garbage, the more my antique Jeep looks and runs good.

  • @gabrielvieira6529
    @gabrielvieira6529 15 дней назад +10

    I can relate to that. My battery was dying. The day I went to the battery seller it checked the altenator, it said it was charging over 14 volts, and they said it needed the voltage regulator replaced. The battery was changed and it has normalyzed!
    And funny story. My dad's car used to blink the alternator light when the revvs were too low, it was useful to prevent it from stalling lol!

  • @Abitibidoug
    @Abitibidoug 7 дней назад +9

    Don't forget that if your car has over 200,000 Km on the clock you should change the brushes. My past experience shows they will fail from wearing out by 230,000Km. I've had 3 such failures on past cars, luckily all close to home. The fourth was on a company vehicle, which had to be towed to the headquarters about 50 Km away.

  • @Finglesham
    @Finglesham 16 дней назад +6

    Compared to when I started driving, 1966, alternators are wonderful. The dynamos were always getting gummed up commutators as well as giving low outputs. The only alternators failure I have had was on a 2l duratec Mondeo but it was after 14 years so cannot grumble. This alternator had a clutch so that no overcharging occurred, This meant the battery lasted 11 years. Great improvement over 1960s cars.

  • @lowen74s
    @lowen74s 7 дней назад +5

    Across the 10 or so vehicles I have owned they've all needed new alternators due to the brushes wearing out. No warning, just one day no more charging. Apart from 1 that was filled with mud from offroading the rest were on vehicles having done over 100,000miles, to me they're a consumable component

  • @crand20033
    @crand20033 14 дней назад +15

    If your battery terminals have corrosion on them or they are loose the battery won't charging properly and the alternator can be falsely blamed.

  • @juicebox22a
    @juicebox22a 15 дней назад +7

    Happy batteries and happy alternators go together. Keep your battery charged and the alternator stays happy.
    Proper frequent charging of an AGM battery cam acrually "stretch" the battery.

  • @iulian2548
    @iulian2548 15 дней назад +9

    Good points about the alternator.
    Its premature failure can be accelerated by engine bay excessive temps as well (same goes for anything else actually).
    Mileage is much less relevant than its lifespan in hours.
    Edit: I've heard of preventive bearings and bushings replacement, which allegedly prolongs the life of the alternator, especially on large engines where it works at high temps.

    • @DmitrySapko
      @DmitrySapko  15 дней назад +4

      Preventive service was common for commercial large vehicles. Not anymore - isn't worth it due to labor costs.

    • @jeffreyread2055
      @jeffreyread2055 11 дней назад

      What kind of time frame are we looking at for preventive maintenance on alternators ?

    • @iulian2548
      @iulian2548 11 дней назад +2

      @@jeffreyread2055 I am no mechanic, but when a belt service is done one can check the alternator bearings and evaluate how it spins.

    • @For_What_It-s_Worth
      @For_What_It-s_Worth 8 дней назад +2

      @@iulian2548
      Any time I remove a belt, I spin/wiggle ALL driven shafts/idler pulleys to check for noisy or worn bearings.

  • @johnmitchell8925
    @johnmitchell8925 16 дней назад +5

    Most modern vehicles no longer use a voltage regulator. The power train control module monitors the battery voltage and also controls the voltage output of the alternator Thats why its so easy to misdiagnose the charging system

  • @michaelscheven9597
    @michaelscheven9597 9 часов назад

    My 1995 VW T4 bus has his first alternater. Changing parts like ball bearings may work. But often todays spare parts are not quality wise like original parts. Sometimes it is better to not touch a still running system.

  • @SKYGUY1
    @SKYGUY1 3 дня назад

    When our 2000 year model Dodge Grand Caravan hit 120,000 miles (it was 22 years old at the time) I replaced my alternator as a matter of course. That way I could do the job at a convenient time and place (my driveway, when I was ready) rather than having to have my car towed from the side of the road, or some shopping center parking lot) I upped the size from the 90 amp original to a 130 amp replacement to use w/ an Inverter just in case I need it during a power outage. I keep the original alternator aboard the van as a spare, if the new one fails on the road somewhere. Thanks for the tips.

  • @BigRedTower
    @BigRedTower 16 дней назад +26

    But, you forgot the 15 minutes of AI-generated "history of cars" and "history of alternators" and "history of batteries" and 3 sponsor plugs sprinkled throughout! ;) Thanks for the helpful video! Subbed.

    • @DmitrySapko
      @DmitrySapko  16 дней назад +7

      Sorry for that. I hope I'll never do that kind of content :)

  • @AnthonyJ350
    @AnthonyJ350 16 дней назад +3

    100% agree on charging up the battery on an automatic charger (make sure itn has settings for traditional lead flooded and AGM) every six months.
    You can really maximize the life of your battery.
    Also upgrade the grounds of the charging system. Great video!

    • @chrisgraham2904
      @chrisgraham2904 2 дня назад +2

      I have a small solar panel on the roof of my van that just trickle charges the battery whenever the sun shines. Battery is 14 years old and has never let me down and has never been boosted.

  • @paulsengupta971
    @paulsengupta971 5 дней назад +1

    When the alternator went on my MR2, I found that you could buy a set of brushes for it from Toyota. So first time, I did this. Second time it went, I found a new old stock replacement alternator for £99 so I went with that. I still have the old one if I fancy changing the brushes again but I would guess after 180k miles that the bearings may not be as good as new!

  • @tonylam9548
    @tonylam9548 16 дней назад +5

    Beginning from the late 1980s auto makers started relocating the regulator to the ignition computer instead of a stand alone unit inside/ outside the alternator. There is not much for a computer to do to keep busy in a car, so auto computer chips are generally 3, 4 tier in technology, and more tasks are being done by the computers as the engineers see fit to let the computer do, it is cheaper to put it in the computer , you best not have any such function failure, for it will get very expensive. A regulator portion failed and you have to swap out the whole computer. That usually come after most mechanic already changed the alternator first.

  • @Iowa599
    @Iowa599 16 дней назад +11

    Mechanics don't "just replace repairable alternators" carelessly!
    We do replace them instead of repairing them, but for good reasons!
    There are many parts that can go bad (bearings, brushes, regulators) and if we repair one bit, the rest are reused. Do you want to pay me to R&R the alternator again when the reused parts fail?
    Besides, a remanufactured alternator costs less than repairing an alternator once the labor time is accounted for! Figure 1hr labor to rebuild, so the parts need to cost at least 1hr less than a rebuilt alternator does! That is (almost) never going to happen because the rebuilt alternator will (usually) cost less than one hour of labor!
    We do care, but we replace them to save the customer!

    • @DmitrySapko
      @DmitrySapko  16 дней назад +3

      I never said all mechanics are bad. What you say highly depends on the country and labor cost of course. And often replacing a unit is indeed a good solution.

    • @juicebox22a
      @juicebox22a 15 дней назад +3

      I agree with this reason for replacing the alternator.
      It's a crap shoot today. Replace the alternator with a "gold" aftermarket or "oem" and they still die prematurely.
      Swap, re-swap, swap again, sure the alternator has a warranty but the customer is passed at paying the labor.
      What needs fixing is quality control, which seems to be in the toilet after the covid era.

    • @Iowa599
      @Iowa599 15 дней назад +3

      @juicebox22a I've got no problem with the original alternator in my car, but it was made before cars were disposable.

  • @H33t3Speaks
    @H33t3Speaks 8 дней назад +2

    Also depending on the motor, replacing an alternator/generator can be a very in depth job. Perhaps even thousands of euros/dollars.
    Unless you're driving something exotic, replacing the battery every 4 years is a simple service that will keep your cars electronics in top shape for there designed service life.
    If you drive the high-end stuff and can't pay for the service or service it yourself, you are living beyond your means.

  • @petebaron4643
    @petebaron4643 12 дней назад +2

    Modern cars always run with the headlights on, and lots of other electric accessories.
    Install an extra large battery, that would cause the alternator to not have to charge the battery as often.

  • @chrisgraham2904
    @chrisgraham2904 2 дня назад

    I agree that most alternator issues are repairable and the most common issue is the built-in voltage regulator, but you'll rarely, or never find a mechanic who is willing to do the repair. My city has several auto electric shops that do specialize in alternator repairs, with one in particular that I do trust. Unfortunately, the repair usually involves removing the alternator myself and taking it to the shop for repair. That repair can often take three to five days from a busy shop.
    Then you carry the alternator home to re-install into your vehicle. If you don't have a second vehicle, this is a real inconvenience, so most people decide to buy a new or rebuilt alternator instead of following the repair route.

  • @deepbludude4697
    @deepbludude4697 9 дней назад +1

    Ive got two vehicles right now both with alternator issues, a 79 Fj45 diesel landcruiser that was re-fitted with a newr 2012 AC Delco ag type alt, it failed BC the PO wired the internal VR with +12VDc to the field terminal instead of to the S terminal. This troopy was rebuilt in 2013 and sat unused till this month when I purchased it. The second is a 88 Fj62 Landcruiser the original denso alternator failed last week so I swapped in a Orielleys one and just ordered brushes to rebuild denso. I believe it failed because the 88 sat dormant from 1998 till I got it running last year. My third truck is a 66 W200 Dodge with a 225 slant 6 the original MOPAR alternator still going strong.

  • @oldbiker9739
    @oldbiker9739 14 дней назад +3

    check grounds and for hot loose connections

  • @Mickey_Bauer
    @Mickey_Bauer 12 часов назад

    My Valeo alternator finally died after 19 years. Instead of throwing it away, i installed a new set of brushes and it works like new 😃👍
    (The brushes were not even original, they are random brushes i found at a store and had to sand them down to the size of the originals)

  • @mda5003
    @mda5003 10 дней назад +1

    On my 14-year-old car that hasn't been used very often, current mileage around 35,000, the battery light came on and although the belt and pulley was still okay, the alternator clearly wasn't charging the battery - but the battery was really old. Despite changing the battery the alternator still would not charge so I replaced the alternator - I suspected the regulator but couldn't get at it so for the sake of £90 I decided on replacement. So yes, maybe it died because it had been struggling with the old battery.

  • @johnkeen2345
    @johnkeen2345 5 дней назад +1

    I think one of the most common faults with an alternator is the free-running pulley.

  • @tellucas
    @tellucas 2 дня назад

    Not fixing leaks near the alternator will kill it too. Either through oil migration into the unit or from leaks directly above into the unit.

  • @JH-fv1gq
    @JH-fv1gq 5 дней назад +1

    My alternator failed on 15 year VW Corrado. Stranded side of road, turned out to be one of the brushes out of position,quick wiggle and off I went again.

  • @brycegman8150
    @brycegman8150 17 дней назад +1

    By using it. Saved myself some time

  • @johnfranklin5277
    @johnfranklin5277 2 дня назад

    My 94 Trans Am I bought new has the original alternator.....338.000 miles seems to be just fine!

  • @michaelstout8152
    @michaelstout8152 17 дней назад +7

    I haven't finished this video yet but i just wanted to say the alternator in my 91 Silverado 33 years old is still charging my battery.. get this, i just replaced the battery in 2022 and the date code on the battery was 2012.

    • @juicebox22a
      @juicebox22a 15 дней назад

      AGM ?

    • @michaelstout8152
      @michaelstout8152 15 дней назад

      @juicebox22a No, just regular AutoZone battery 78 group, but I did however add distilled water at some point to top off the cells.

  • @solarflare4259
    @solarflare4259 4 минуты назад

    28 years on my '97 VW golf; I've never experienced an alternator problem...

  • @malcolmmarzo2461
    @malcolmmarzo2461 3 дня назад

    A symptom I had on a 75,000 mile Subaru Forester was weird. For a couple of months whenever I drove over a rough part of a road the dashboard would be triggered with several trouble lights. I would clear them with my installed Scan Gauge unit. This happened multiple times. Then one day all of the lights would come on and I couldn't clear them, and had to get home in limp mode. After a couple of weeks of chasing codes and sensors I noticed the scanner said 11.2 volts. So I replaced a two-year-old premium battery. No trouble codes but still low voltage. Replacing the alternator was the solution. You get "no communication" messages on the CAN-Bus system if the voltage is low. Duh. I felt like the dummy who wonders why his laptop is acting funny because its battery is low and isn't plugged in : -) My guess is that the alternator was failing on rough roads because the brushes were bad enough to respond to jiggles.

  • @twobeagles1365
    @twobeagles1365 7 дней назад +1

    One rule people don't know, A Alternator is designed to maintain battery charge level NOT charge the battery, Weak battery , loose & corroded connections will cause alternator to charge more often or for longer periods of time, this creates heat and heat destroys electrical components in the alternator. If you ever experienced a bad battery and was told your alternator is bad too, most often the bad battery burnt the alternator up because it continuously tried to keep voltages at correct levels. Do yourself a favor when cranking issues arise and battery has weaken Replace it, and ck and clean terminals to battery once or twice a year, chances are Battery life will be longer. My last battery in my 2001 Tacoma was 9.5 yrs old when it died, 315 k on original Alternator.... Still Rollin in the Taco....

  • @lesklower7281
    @lesklower7281 16 дней назад +4

    I own a 1997 Toyota Hilux in Australia and it may have its original alternator when l bought the Hilux 5 years ago l got no service records the only paperwork was the registration paper but l know for one thing l replaced the battery 5 years ago but my Hilux is extremely analog two electronic components have failed the radio cassette player and the modul for the cruise but who needs cruise control live without it and the cruise control was an optional extra Toyota over engineered the 5th generation Toyota Hilux because the carburator may be original but with 439000 kilometres every things fine on my Hilux l use it regularly for running erons l am a retired courier and actually it is one of the best commercial vehicles l have ever bought and the Hilux was my last courier vehicle l own once l found out what an indestructible unbreakable reliable and dependable vehicle it is and it maybe the best vehicle ever made as claimed by another you tuber

    • @DmitrySapko
      @DmitrySapko  16 дней назад

      Agree, super-reliable Toyotas. Pity the modern ones are way worse and complicated.

    • @lesklower7281
      @lesklower7281 15 дней назад

      @DmitrySapko Still they are one of the best new vehicles to buy but some Toyota's are having reliability problems in the USA but Toyota's are the most popular vehicle in Australia were most of the taxis are Toyota Camery Hybrids and also use Toyota Hiaces for transporting disabled passengers and all private disabled vans are Toyota Hiaces and even the JDM Toyota people movers which a company come with passenger seats that swing out and in some cases were the actual seat is an electric wheel chair and a ramp comes out the left hand side and the disabled passenger just drives their wheelchair out if the van available in Australia and they all JDMs

  • @VICTORGb-i2o
    @VICTORGb-i2o 3 дня назад +2

    I have a Kia Stinger 2020 GT2 and I usually get an alert on my dashboard that says battery draining due to external device and I've taken it to multiple workshop nobody seems to be able to find the root cause of the problem because if the car is parked for 2/3 days without been driven it kills the battery totally and I will have to jump start the car so far I've had to replace my battery twice does any one have a similar issue or knows exactly could be the problem? I will appreciate any suggestions or opinions at this point.. Thanks!

    • @DmitrySapko
      @DmitrySapko  3 дня назад +1

      Hey! I haven't heard about common drain issues with the Stinger. And I'm sure a good electrician will easily find the drain. In short, you need to turn the car off and measure possible current at every single fuse the car has. If there is a current flowing through a certain fuse, you then need to identify what this fuse covers and you will get the idea of the drain. If there are no drains, my wild guess would be that the key fob is usually located near the car when it sits and they keep "communicating" with each other which causes battery drain.

  • @100pyatt
    @100pyatt 2 дня назад

    #Denso "hairpin" Style alternators are the best of the best !! 🤘🏽🤘🏽💪💪

  • @jpnovember9017
    @jpnovember9017 3 дня назад +2

    it is usually the 'diode' causing problems in the alternator. so Just check it then replace this part. its very cheap.

  • @asmautollc
    @asmautollc 20 часов назад

    It costs the same to remove an alternator that you rebuild as it does one you replace. Then there is a labor cost for rebuilding an old alternator, assuming you can get the replacement parts. And there is labor involved in disassembling an alternator and finding the internal issues. Most of the time it is a better investment to replace the alternator if you are not rebuilding it yourself. That being said, we’ve encountered problems with remanufactured alternators. Much better to replace with new.
    Furthermore, throwing an alternator at a problem is the exception, not the rule. Yes, alternators get misdiagnosed by people, but these people are typically tow truck guys, parts store guys, and some mobile mechanics. I can’t speak to dealerships as I’ve never worked at one. I can say that the independent shops I know, the legit ones, not people working solo out of their personal garage, do not do this. They do proper diag and inspection of wires and connections.

  • @TheAllMightyGodofCod
    @TheAllMightyGodofCod 17 дней назад +3

    15 years old C4, never had a probelm with the alternator
    ...
    17 years old Aygo, bever had a problem with the alternator.
    Had a 24 years old Renault 19 and never had an alternator problem.
    28 years old Passat, never had a problem.
    My dad had a 33 years old Rebault 19... Never had a problem with the alternator.
    He also had an Opel for 24 years and I dont remember it having trouble with the alternator

    • @indridcold8433
      @indridcold8433 14 дней назад +1

      @@TheAllMightyGodofCod The newer the vehicle, the more problematic the components will be. This is due to corporation greed trying to maximise profit over quality. I change alternators on newer vehicles a, lot. Yet, the employees with fossilised vehicles never fail. When a $12 accelerator cable, that rarely failed, is changed for a plastic computerised accelerator that is worth cents to make but costs $400 for the customer to replace, and is problematic, that is definitely profit over quality. They want it to fail to sell rhe customer a crappy computerised accelerator. Nissan is a great example. There are 30 year old Nissans that are running flawlessly. Yet, the new ones are falling apart right out of warranty due to the junk CVTs that replaced the venerable hydraulic, gear driven, transmissions. They are so bad that our shop actually keeps them in stock. That is how bad they are. A flawless automatic transmission was changed to maximise profits.

    • @TheAllMightyGodofCod
      @TheAllMightyGodofCod 14 дней назад +1

      @indridcold8433 Absolut nonsense and you provide no facts to support that idea.
      Have a nice day.

    • @kinasc1575
      @kinasc1575 9 дней назад +2

      ​@TheAllMightyGodofCod You obviously don't know much about cars do you.

    • @TheAllMightyGodofCod
      @TheAllMightyGodofCod 9 дней назад

      @kinasc1575 F.O.

    • @For_What_It-s_Worth
      @For_What_It-s_Worth 8 дней назад

      @@TheAllMightyGodofCod
      It is certainly nonsense.
      It just happens to also be true.
      Sad, but true.

  • @andrews-ei2xg
    @andrews-ei2xg 3 дня назад +1

    Just a couple days ago, a Duralast was a Didnotlast for 30 minutes. I ended up getting a Denso.😂😂😂

  • @blipco5
    @blipco5 16 дней назад

    You talk sense. I subscribed. 👍

  • @theyjustwantyourmoney4539
    @theyjustwantyourmoney4539 7 дней назад +1

    It’s difficult to get places that sell alternator parts

  • @searaydrivingguy
    @searaydrivingguy 14 часов назад

    I added an MSD ignition to my 1967 camaro, it over heated my wiring, i added a 100/150 amp alternator problem solved.

  • @johnmitchell8925
    @johnmitchell8925 16 дней назад +1

    modern alternators arn't desined to charge low batteries , that why the state of charge and the health of your battery is so important

  • @T1t4n1umSh13ld
    @T1t4n1umSh13ld 17 дней назад +2

    You are underrated asf, you deserve way more views than what you are getting now.

  • @timothykeith1367
    @timothykeith1367 8 дней назад

    An alternator technician said that using a trickle charger daily can double alternator life because it reduces heat from charging the battery

    • @DmitrySapko
      @DmitrySapko  8 дней назад

      Probably, daily is a bit too much. Modern batteries will need maintenance once every 4-6 months to last way longer than average. Daily charging may destroy the battery pretty fast. But depends on the battery type, too.

  • @butWhyDad
    @butWhyDad 17 дней назад +1

    I just know a weak battery will mess with your car's electronics because it lost its ability to regulate voltage so when you turn on AC or turn steering wheel your lights dim your AC blower slows etc. so safe to say this triggers alternator to work as hard as it can vs a good battery wouldnt trigger that response.

    • @DmitrySapko
      @DmitrySapko  16 дней назад

      Usually, if you experience voltage anomalies like dimming lights when the engine is working, it's all about alternator or voltage regulator only. Dying battery will mess up things before the engine is started. But if it's eventually started, all power should go only from the alternator. Otherwise, something is wrong in the system.

    • @butWhyDad
      @butWhyDad 15 дней назад

      @@DmitrySapko I am telling you this because my AC fans would slow to significantly slower speed like out of 4 settings it would go from 3 to 1 speed just from turning my steering wheel when parallel parking etc. and my battery was providing 350 CCA out of 500 regular and internal res of 8-9. Although it would start my car it shows the role of batteries as a buffer in high demand situations.
      After all your car uses DC but your alternator produces AC so your battery is the source of electricity not alternator for the stuff in your car, it needs to be converted to DC. A bad battery will not do a good job of keeping a steady voltage and cause big ripples and lack of sudden power since alternator can't produce enough in a second.
      I replaced my battery and problem is fixed as expected. I also tested my alternator and it charges at 14.1v so nothing is wrong with the alternator anyway.

  • @nikolay9584
    @nikolay9584 16 дней назад +5

    Negative power balance kills battery and alternator. Too many of cars are unable to charge battery when engine runs idle. If you travel night time thru traffic jams, you get battery discharged at the end. Or you must rev while you are staying. This is devastating to battery life and rectifier becomes expendable.

  • @connor_flanigan
    @connor_flanigan 5 дней назад

    Truman Capote - alternator expert

  • @justhere4721
    @justhere4721 16 дней назад +3

    Even if it is the bearing or the voltage regulator, they're still gonna replace the alternator. People don't know how to rebuild alternators and majority of shops won't bother.

    • @DmitrySapko
      @DmitrySapko  16 дней назад

      Yep, true

    • @hotrodray6802
      @hotrodray6802 16 дней назад

      At today's shop labor prices, it is not cost effective to do most rebuilds.
      $100+ labor plus parts... 🤔

    • @DmitrySapko
      @DmitrySapko  16 дней назад +1

      May be true for some models. But alternators aren't cheap these days, too. While bearings or brushes are dirt cheap and easily available.

  • @anthonyhitchings1051
    @anthonyhitchings1051 16 дней назад

    they are reliable - my 2008 Jeep Liberty got to 200,000 miles before failing.

  • @the_kombinator
    @the_kombinator 16 дней назад

    My battery warning light has been very, very faintly on (can only see it at night) so I installed a volts gauge - it puts out like 14.5v, sometimes a bit more. It's been fine for the 4 years and 60K I put on it.

    • @DmitrySapko
      @DmitrySapko  16 дней назад

      Voltage is fine. Must have been some problem with the dash or something.

    • @the_kombinator
      @the_kombinator 16 дней назад

      @@DmitrySapko It gets slightly brighter when the load is higher (defrost, full fan, etc). Belt's fine, output at alternator matches what the inside gauge says. I've just been living with it :)

    • @gabrielvieira6529
      @gabrielvieira6529 15 дней назад

      @@the_kombinator Impressive that it hasn't cooked the electronics on the engine. They are not meant to handle that voltage!

    • @the_kombinator
      @the_kombinator 15 дней назад

      @@gabrielvieira6529 Um, 14.5v? I haven't even changed a single bulb in that car in the 4 years I've owned it. My classic hits 15v when its on high idle, no electronics to burn in there though :P

    • @gabrielvieira6529
      @gabrielvieira6529 7 дней назад +1

      @@the_kombinator Ah, classic cars. The classics are built stronger. Enjoy your ride!

  • @louarmstrong6128
    @louarmstrong6128 6 дней назад

    I have read spilling oil on it could damage it also

    • @DmitrySapko
      @DmitrySapko  5 дней назад

      Certainly. Oil or coolant may kill it immediately.

  • @derekhobbs1102
    @derekhobbs1102 16 дней назад +1

    The alternator in my Kia Carnival failed due to rocker cover oil leak.

    • @DmitrySapko
      @DmitrySapko  16 дней назад

      Right, forgot about leaks. But we learn about them too late anyway.

  • @kevin-y6f8o
    @kevin-y6f8o 10 дней назад

    My 2005 Camry has 220k miles. I just changed the factory alternator. 😮😮

  • @ken2400
    @ken2400 17 дней назад

    Funny my first auto repair was to replace brushes on a 1978 Plymouth Horizon alternator

  • @GadGetHackss
    @GadGetHackss 2 дня назад

    They actually rarely fail

  • @richardbeckmann6720
    @richardbeckmann6720 15 дней назад

    My 04 jeep wj costs $120 for a new one only have to unscrew 2 bolts and unsnap a connector plug to replace it in about 3 minutes. I replace mine every 4 years.

    • @HEMI345S
      @HEMI345S 6 дней назад

      I replace mine with every oil change 😂😂😂

  • @puncht37
    @puncht37 15 дней назад +3

    Heat. Number 1 killer of alternators.

    • @redbaron6805
      @redbaron6805 11 дней назад

      Heat is the #1 killer of batteries. Alternators are designed for the engine compartment temperatures, so heat is not really a lifespan factor...

    • @puncht37
      @puncht37 11 дней назад

      @@redbaron6805 Heat is THE killer of all things electrical.

    • @redbaron6805
      @redbaron6805 11 дней назад

      @@puncht37 That simply isn't true. Electronics components have a temperature range.
      If you operate them within their designed temperature range, literally nothing will happen.
      Only when they are operated OUTSIDE of their designed temperature range, does heat become an issue.
      If you look at the Data Sheet for any electronics part, it lists the operating range it is designed for. Even if the component is in an environment you consider "hot" the rule still applies.
      But don't worry, I have only been doing this for 30 years, so I'm sure you can teach me something about how this works...

    • @puncht37
      @puncht37 11 дней назад

      @@redbaron6805 Iv`e been a tech for 40. So, maybe so.

    • @louarmstrong6128
      @louarmstrong6128 6 дней назад

      ​@@puncht37😮 you tell 'em punch

  • @lot10101
    @lot10101 7 дней назад

    I have always overspecced my alternator...😅

  • @static_Tricolor_camry
    @static_Tricolor_camry 15 дней назад

    So this is what I've been saying for months even years, always have a tool box in your trunk with a spare Alternator because Alternators are unpredictable. They can die on you at any given moment, replacing an Alternator on the side of the road is better than spending $300 on a tow truck. Plus you'll be back on the raod after a few hours.

    • @DmitrySapko
      @DmitrySapko  15 дней назад +1

      It's getting harder to replace almost anything on the side of the road in modern cars, unfortunately.

    • @static_Tricolor_camry
      @static_Tricolor_camry 15 дней назад

      @@DmitrySapko Not my cars I drive a 17 years old Camry and a 2016 Scion TC both Alternators are on top of the engine. I don't drive new modern junks.

  • @coastalbeer
    @coastalbeer 13 дней назад

    By the way, your alternator maintains your battery. It does not charge it back to a full charge.

  • @unclefester4626
    @unclefester4626 9 дней назад

    There are alternators made specifically for stereo systems....

  • @BartSliggers
    @BartSliggers 16 дней назад

    My car uses a giant alternator in reverse as its main mode of propulsion.

  • @ColAngus
    @ColAngus 7 дней назад

    The original alternator in my 1987 Mustang is still working......

  • @oleksandrs1102
    @oleksandrs1102 14 дней назад

    Driving kills a car, non driving is also kills

  • @the_kombinator
    @the_kombinator 16 дней назад

    Serpentine belt? Out of the 5 cars I own, ONE has a serpentine belt.

  • @adebrade172
    @adebrade172 4 дня назад

    My car packed up, said it was alternator turns out it was voltage regulator cost few quid to fix instead of hundreds

  • @dennispowers7261
    @dennispowers7261 5 дней назад

    They become hot when i drive my car??

    • @DmitrySapko
      @DmitrySapko  5 дней назад

      If just hot, it's ok. If red-hot, there is a problem - the alternator is dying.

  • @StopTeoriomSpiskowym
    @StopTeoriomSpiskowym 14 дней назад

    Alternator rev faster than engine (small wheel). its looks like at 1000rpm its rev 2000

  • @VincentScales
    @VincentScales 8 дней назад

    Is the price of repairs worth the cost of an alternator? $150 to $950 depending on your car!

    • @DmitrySapko
      @DmitrySapko  8 дней назад

      Absolutely depends on a car and your country (labor cost).

  • @coastalbeer
    @coastalbeer 13 дней назад +1

    I charge my battery every two months!

    • @josemercado4702
      @josemercado4702 10 дней назад +1

      There is no need to change the battery if you use the car frequently.

  • @jimjones5644
    @jimjones5644 День назад

    First we get rocket then we get moose and squirrel

  • @josemercado4702
    @josemercado4702 10 дней назад

    A bad battery cell will kill your alternator

  • @Szamuz
    @Szamuz 17 дней назад +2

    Weak battery won't cause the alternator to work at it's maximum capacity unless the battery is shorted or something, it'll charge it very quickly to the proper voltage after startup and nothing else will happen

    • @DmitrySapko
      @DmitrySapko  17 дней назад +1

      No, the system will only switch to normal voltage when the battery is 12.5-12.8 volts, depending on the battery type and software in your car. Up until that, the voltage regulator will send 14+ volts to charge the battery.

    • @Szamuz
      @Szamuz 17 дней назад

      @DmitrySapko I think you need to learn a little bit more before trying to teach others

    • @DmitrySapko
      @DmitrySapko  17 дней назад +1

      Thx for your advice :)

    • @ruben_balea
      @ruben_balea 17 дней назад

      @@DmitrySapko For flooded type lead acid batteries it doesn't matter if the alternator makes 14.4V, the batteries will quickly reach that voltage without pulling to much current and then the current will be way less than 10A so the battery will take a lot of hours or even days with the engine running to be 90% recharged.
      To push a lot of Amps into a flooded battery you need to increase the voltage further than it's recommended for things like radios and enough to blow all incandescent bulbs in a few seconds, so you must remove the battery from the car, it isn't enough to disconnect it because it can still explode covering the engine bay in acid...
      Chances are it will explode even if you are careful and follow all the instructions, using a fast charger is very dangerous, it's the battery equivalent of split ring rims for tires.
      AGM and GEL batteries can pull more current but usually the OEM alternator and the OEM battery are proportionally sized to not cause problems, unless you installed a bigger battery the alternator should be OK.
      And lithium batteries aren't straight replacements for cars that were designed to use lead acid batteries.
      Those can work on motorcycles and riding mowers that have a flywheel generator because those generators have the ability to limit their own output, but most external (belt driven) alternators can't do that.

    • @gabrielvieira6529
      @gabrielvieira6529 15 дней назад

      @@Szamuz It will make the alternator be full power. I have tasted that before. The alternator was dumping its maximum voltage to a dead battery I had. Now its changeed and it charges to 12.8v normally

  • @xsword0001
    @xsword0001 9 дней назад

    😂too old battery is #1 killer for alternator

  • @phyllisgraham6985
    @phyllisgraham6985 3 дня назад

    Bad ground

  • @Cristip
    @Cristip 2 дня назад

    Nothing new...the same issue since '50 ...

  • @michaelduke4500
    @michaelduke4500 16 дней назад

    Meat & potatoes at 2:34.

  • @pastabravo12
    @pastabravo12 9 дней назад

    5:20

  • @johnshaw5001
    @johnshaw5001 4 дня назад

    What! You are so off base with this video. If you actually did research alternator failure is NOT a problem. Although I am not quite sure where you live and what vehicles you are referencing. Also, your criticism of dealership technicians is wrong. Many years ago, due to customer demand for quick turnaround, independent and Dealerships have gone from repairing components to simply replacing them. With that said, you are misleading anyone without technical knowledge in the automotive field. BTY I have over 45 years in the automotive field. The last 21 years as the Technical Training Manager with one of the leading automobile manufacturers.

  • @billdrift728
    @billdrift728 12 дней назад

    I'm getting a strong sense that you are not the Mechanic or expert you claim to be. As a ASE certified master mechanic with 24 years of experience, I smell fraud

    • @DmitrySapko
      @DmitrySapko  12 дней назад

      Curious to know what made you think this way :-)

    • @billdrift728
      @billdrift728 12 дней назад

      @DmitrySapko The way you present inaccurat information / misinformation which made me check your website and came to that conclusion. Could you please state your certifications and work experience so I can move on sir?
      I hope that you can understand my position as a industry professional, we can't have uncredible pretenders running around

    • @DmitrySapko
      @DmitrySapko  12 дней назад

      Well, compared to you, I'm not an expert for sure. Compared to guys making tons of bs videos about car problems on youtube, I'm a super expert. I live in Ukraine. What kind of certification do you want to see? :) Also, RUclips is big. If my vids seem to be inaccurate, no one actually makes you watch them

    • @billdrift728
      @billdrift728 12 дней назад

      @@DmitrySapko you claim to be a auto expert and a mechanic, I want to know what makes you think you have the right to make such a bold claim? Because other people are doing it doesn't give you the right to use AI and make content on a false authoritative standpoint. It's fine to be a auto enthusiasts, if fact that's awesome. You will make way better videos if you are honest with who you are, what you want to make videos about, how you got this information and just be yourself. You don't have to be a real mechanic or expert to make great content, just be honest, the truth always comes out in the end and as long as you're honest, no one can take your credibility. Stop using AI, be creative and make content on what you find the most interesting

    • @DmitrySapko
      @DmitrySapko  12 дней назад

      What kind of AI are you talking about? :) That's just ridiculous. I should've stopped this conversation long ago, but it's really annoying. I'm a mechanic with 10 years of exp. I can defend any point stated in my videos or articles. Why is everyone sure they know what kind of content I should make or what I should say? If you don't like it, find something you will like. If you don't agree with something, you are more than welcome to discuss that. You came here with bold comments without being specific at all. I think I should just block you :)

  • @robertmcnair983
    @robertmcnair983 11 дней назад

    Bull shit