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CNET On Cars - How To: Diagnose an electrical leak in your car

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  • Опубліковано 29 чер 2015
  • Watch more from CNET On Cars - cnet.co/1U4Rg7Q
    Brian Cooley shares his handy tips for plugging an electrical leak in your car.

КОМЕНТАРІ • 103

  • @mxkep
    @mxkep 7 місяців тому +5

    Best car maintenance video I've ever seen.

  • @EliteSlayer542
    @EliteSlayer542 5 років тому +3

    My girlfriends mazda is currently having this issue and I instantly remembered seeing this video a couple years back. Thanks Cooley!

  • @bilalothman8150
    @bilalothman8150 2 роки тому +8

    Well said man. You explained everything very clearly in less than 5 mins. Thanks a lot & God bless you

  • @bryanlyle
    @bryanlyle 3 роки тому +8

    I know this video is old but on modern cars, you need to connect the multimeter up and wait... 10, 15, 30 minutes for the car to really go to sleep. If you jump the gun and start pulling fuses you'll go crazy trying to find the source.

  • @billindurham
    @billindurham 5 років тому +4

    A gem of a DIY video. CNET has always been my go to for computer stuff... didn’t know it went beyond. Thanks!

  • @tonyhill3638
    @tonyhill3638 6 років тому +1

    Very helpful! I have never used the 10A input on my multimeter before- now I'm going to pull out the book and study up on that function. THANKS for posting this video!

  • @abdulhassan1107
    @abdulhassan1107 10 місяців тому

    This was the most perfect informative video on this topic even to the average mechanic or driver, compared to what I've seen earlier from other good UA-camrs.. thanks a lot for sharing!

  • @frankmurray9172
    @frankmurray9172 6 років тому +2

    Clear concise practical just what you need. I wish I knew about this simple test years ago.

  • @TheBryanNeill
    @TheBryanNeill 9 років тому +1

    Amazing! Such a useful video, will keep this in my favorites if the problem ever arrises

  • @prometheus5700
    @prometheus5700 4 роки тому

    You are a great teacher. Excellent video. Thanks.

  • @johnbfishback7391
    @johnbfishback7391 2 роки тому +1

    Very clear and straightforward, thank you very much. Aloha always, John

  • @MarkDunlop19390
    @MarkDunlop19390 9 років тому

    Great video wish i had seen this a few weeks ago as I had a weird electrical issue.

  • @roncho0o28
    @roncho0o28 2 роки тому +1

    That video lesson is better explained than my lessons in Uni... Thanks guys

  • @drippy2mixy
    @drippy2mixy 3 роки тому

    Best video I seen for finding a leak my guy a goat

  • @jeffmonterola
    @jeffmonterola 9 років тому

    Thanks, Brian! Very helpful!

  • @siko4biko
    @siko4biko 9 років тому

    Great information . Looking for more DIY videos.

  • @johnnellfelarca3777
    @johnnellfelarca3777 2 роки тому

    That's awesome. Thank you for the tips!

  • @toddstrong62
    @toddstrong62 9 років тому +19

    Brian, that is good training and a good diagnostic tip. However, a bad example was shown. You're obviously going to get a high current draw on that circuit with your driver's door open. Your dome light circuit is energized with the open door. There may well be a problem in that circuit, but we can't say for sure with an open door (switch contact closed).

    • @JacMadsen
      @JacMadsen 5 років тому +2

      Todd Strong good catch there. It might be that the car didn’t have an actual draw so the open door was acting as a simulation.

    • @resitkoc7606
      @resitkoc7606 3 роки тому

      Do you know what is the name of the device measures the current?

    • @punk88punk88
      @punk88punk88 3 роки тому

      @@resitkoc7606 multimeter

  • @Sagitario17
    @Sagitario17 7 років тому +1

    very helpful and short, I liked the video

  • @noonethere5
    @noonethere5 Рік тому

    This is the best video on UA-cam

  • @cyberlite34
    @cyberlite34 9 років тому +1

    Wow, Great video, thank you, a good diagnostic tip.

  • @jaroko1967
    @jaroko1967 8 місяців тому

    Excellent video thank you

  • @NJClickz
    @NJClickz 2 роки тому

    Perfect 👌,& Can you do a video for ,how to check the circuit of horn,with multi meter

  • @stormtrooperbb
    @stormtrooperbb 9 років тому +7

    at last something useful on CNET !

  • @davidkimari990
    @davidkimari990 4 роки тому

    Every morning my battery was always flat.
    Am so helped.
    Thanks sir

  • @mohammedomerabu-talib6294
    @mohammedomerabu-talib6294 8 років тому +1

    very basic easy job, thanks alot

  • @adilator
    @adilator 9 років тому +12

    The best video I've seen from cnet in a while.

  • @phimister78
    @phimister78 Рік тому

    very well explained!!! this has saved me big money. many many thanks !!! ❤️🏴󠁧󠁢󠁳󠁣󠁴󠁿

  • @mbu745
    @mbu745 Місяць тому

    Very useful video, thanks.

  • @Silentdave2k6
    @Silentdave2k6 9 років тому

    Thanks a lot! great video

  • @jaba3
    @jaba3 2 роки тому

    Thanks very short and informative

  • @jaba3
    @jaba3 2 роки тому

    Thank you
    Short and very informative

  • @rayleeaustralia
    @rayleeaustralia 5 років тому +2

    Very informative 👍

  • @russellfield1451
    @russellfield1451 8 місяців тому

    Brilliant vídeo, thankyou

  • @healer378
    @healer378 7 місяців тому

    Thank you so much.

  • @thomasng7950
    @thomasng7950 9 років тому

    Best of the best. thanks.

  • @akshayhegde7393
    @akshayhegde7393 2 роки тому

    Great video

  • @neknosnaws5990
    @neknosnaws5990 Рік тому

    I found out that using a multimeter is cheaper than having a battery totally discharged by a pesky leak that will now make the car require a new battery after going almost completely dead twice. Thanks for the diagnostic!

  • @Seducier
    @Seducier 2 роки тому

    This is awesome, thanks.

  • @focused313
    @focused313 9 років тому +1

    Great vid

  • @s80key
    @s80key 9 років тому

    thank you very informative artical

  • @benjaminback7718
    @benjaminback7718 Місяць тому +1

    what if the reading on the meter says 0.00, I did exactly as he did

  • @alonewolfalonewolf5066
    @alonewolfalonewolf5066 2 роки тому

    Thanks sir 🙏🙏🙏❤️❤️❤️ best teach 🙂

  • @WellWisdom.
    @WellWisdom. 3 роки тому

    Nice and clear.

  • @Ben-nx7yy
    @Ben-nx7yy 2 роки тому

    Very well made video

  • @girishr2118
    @girishr2118 3 роки тому

    Explained clear.

  • @user-zf3zm8to9j
    @user-zf3zm8to9j 4 місяці тому

    Wow thank you this is good

  • @mohamedabuelsaoud9472
    @mohamedabuelsaoud9472 9 років тому +1

    Good one

  • @JustinJ73
    @JustinJ73 Місяць тому

    Thanks mate

  • @1atul21
    @1atul21 3 роки тому

    Thank you sir

  • @nolaboigee
    @nolaboigee 9 років тому +11

    Leave it to UA-cam to teach me something the Air Force couldn't teach me.

  • @user-un9dm6me8b
    @user-un9dm6me8b 5 років тому

    amazing!!!

  • @21dolphin123
    @21dolphin123 3 роки тому

    Wonderful nice and clear

  • @user-un9dm6me8b
    @user-un9dm6me8b 5 років тому

    AMAZING!!!

  • @kuvvooja7435
    @kuvvooja7435 Рік тому

    Good video

  • @RobertLeBlancPhoto
    @RobertLeBlancPhoto 9 років тому

    Well done.

  • @jackarmando
    @jackarmando 3 роки тому

    Thanks for that :)

  • @devpratap282
    @devpratap282 4 роки тому

    Nice video

  • @namelesssnitchy
    @namelesssnitchy 3 роки тому

    Is the standard discharge with a motorcycle battery the same? Its 12 volt vs 24volt(car) right?

  • @taklamen5178
    @taklamen5178 7 місяців тому

    Thanks

  • @peppeddu
    @peppeddu 9 років тому +1

    Smart guy

  • @muhzadful
    @muhzadful 3 роки тому

    That was very good

  • @kjlanier1975
    @kjlanier1975 2 роки тому

    Great video but what is the meter called so I can get one?

  • @Georooney
    @Georooney 7 місяців тому

    A mechanic told me that you need to wait several minutes for the meter to drop its reading. The computer performs a number of checks before going to sleep, all of which draw current.

  • @barzkurd2060
    @barzkurd2060 5 років тому +1

    Bruh that's sooo helpful, i was lost and was about to burn my car but this gave my car another hope to stay alive

  • @Georooney
    @Georooney 7 місяців тому

    Very good, but you had the door open all the time you were pulling fuses. The interior light would be on, drawing over one amp.

  • @damiondawkins3308
    @damiondawkins3308 3 роки тому

    Yes good tell

  • @Ivan.Nismo0018
    @Ivan.Nismo0018 9 років тому +1

    amazing video, Thanks!

  • @jmy6050
    @jmy6050 4 місяці тому

    Is it possible that there's a voltage leak before the fuse box?

  • @bedtimesd.1247
    @bedtimesd.1247 5 років тому

    Loved the tips it should really help me with my problem. Thanks.
    Just a thought in the Partner rating isn't the "immature" content that you want to avoid?

  • @pinoyeh
    @pinoyeh 9 років тому

    That"s the practical way of diagnosing such fault.

  • @tnforcegaming5331
    @tnforcegaming5331 Місяць тому

    This time why fuse not blown? Sir

  • @ivaylokrustev87
    @ivaylokrustev87 3 роки тому

    Hi! I have watched the video and did test, however, I couldn't find any leaks - meter was showing 0.05 Amps and I think the car battery is also working - shows around 12.5Volts and the display indicator lights off after I start the engine. Yet sometimes after the car has been properly hooked on the accumulator it doesn't start, making just a click sound. What else I could in order to isolate the problem.

    • @matthewfox9143
      @matthewfox9143 3 роки тому

      Starter motor, when it does this just drop the vehicle in any of the gears and rock it back and forth a few inches. Then either engage the clutch or drop it out of gear and try and crank it with the key again

  • @timtampa
    @timtampa 9 років тому

    Deja vu!

  • @carlosw1687
    @carlosw1687 3 роки тому

    Can you use a hook amperimeter instead of connecting your multimeter in line?

    • @Georooney
      @Georooney 7 місяців тому

      Only if it's a DC ammeter.

  • @wolverinex4243
    @wolverinex4243 2 роки тому

    Important question, are new batteries supposed to leak acid from the top when you flip it upside down? Bought 2 like that...kept one bc the AutoZone employee says that's ok. Never seen that. People say it should never leak regardless. Another employee I spoke to just said you're not supoosed to turn the battery upside down? What's the truth? What should I do?

    • @Georooney
      @Georooney 7 місяців тому

      I'd go with the second answer. Why would you want to turn a battery upside down?

    • @wolverinex4243
      @wolverinex4243 7 місяців тому

      @@Georooney old batteries don't do that. Was carrying it on shoulder.

  • @East17A
    @East17A 9 років тому

    thank you for the video . with the money people pay for cars i would think .. they should be better engineered. with better design that prevent such problem !!

  • @joshuaelliott6328
    @joshuaelliott6328 Рік тому

    I’ve got mine hooked up, when I first put the multimeter on it jumps to 2.54 amps. After about 10 sec it drops to 0.51 then another 10 sec down to 0.01. Am I doing something wrong?

    • @charliefogarty3332
      @charliefogarty3332 7 місяців тому

      There might be a system in your vehicle that operates for an amount of after time after the Key is in the Off position. If the car is a late model, you may need to let it stand for "x" mins before performing the leak down test. I suggest check it every 10 minutes over a 40 minute period

    • @Georooney
      @Georooney 7 місяців тому

      No, all is good. Sounds like you need a new battery.

  • @ultravidz
    @ultravidz 9 років тому

    Epic

  • @freakyflow
    @freakyflow 3 роки тому

    Never heard of a Battery leak Unless it is leaking out fluid This is a Parasitic "Draw" test ..And a few tips before you even start your test ..Number one even when you charge your battery How do you know it is holding that power? Have a load test done..2nd double check your multimeter to see it is working correctly And has good batteries Both of these tips as common and maybe stupid to even think about Has had people spend hundreds of dollars at mechanic shops.
    A few other tips : Wait 30 mins for your computer to go into "sleep" mode You can have items still running And will give a false reading.
    Another problem could be your alt, And also Make sure you do not have a hood light on while doing the test ..unplug the light Or find away to close the switch that triggers it ..

  • @webbie1891
    @webbie1891 9 років тому +1

    Way better then going to mechanic and being overcharge ridiculous price just for diagnostic in which they use similar products smh

  • @rasmus7068
    @rasmus7068 9 років тому

    Re-upload...

  • @eeyyaakk6801
    @eeyyaakk6801 3 роки тому

    3:19
    Isn't that 160 milliamps? Can anyone explain to me how that's supposed to mean 16 milliamps.
    Isn't an amp equal to 1000 milliamps?
    Thanks for your time.

    • @siimvillemson3578
      @siimvillemson3578 3 роки тому

      Yes thats 160mA and thats wrong. And normal leak is 10mA - 40mA (0.01A - 0.04A)

    • @eeyyaakk6801
      @eeyyaakk6801 3 роки тому

      @@siimvillemson3578 thanks friend

  • @rstruth9127
    @rstruth9127 8 років тому +1

    C-3 alarm control, now look under the seat at the alarm control unit and see if it has been submerged or has gotten wet, Most likely it has and the alarm control unit and possible wiring will need to be replaced. Porsche tech 101

  • @hanleymajalang4629
    @hanleymajalang4629 3 роки тому

    The current occur because u didn't close your door, its not in sleep mode...you are so lucky the current is under 10A.,if it is higher it will blown your multimeter 10A fuse...

    • @Georooney
      @Georooney 7 місяців тому

      Try starting the motor. :)

  • @cochinito83
    @cochinito83 9 років тому

    this video should have been done 3 months ago

  • @long_fellow
    @long_fellow 3 роки тому

    *Please wear a glove*

  • @user-fg2zg5ww4o
    @user-fg2zg5ww4o 7 місяців тому

    This is good information, but why is the guy wearing a suit. Who wears a suit working on a car.

  • @locotakifame9495
    @locotakifame9495 9 років тому

    First

  • @michaeleberhane578
    @michaeleberhane578 3 роки тому

    Thanks