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How to Properly Jump Start a Car

How to Properly Jump Start a Car


Hey guys Chrisfix Here. Today I’m going to teach you the proper way to jumpstart your car if your battery’s dead. It’s happened to all of us, you leave your headlights on, your battery just drains for some reason, and you need a jump. In my 95 Ford Windstar the battery is dead, Just ’cause it’s seven years old it’s pretty old, batteries last about four years on average. (Engine turning over slowly) As you could hear, it won’t start, so I’m going to show you how to safely and properly jump a car. So the first step Is get a car that runs and pull it up to the car with the dead battery, so the jumper cables could reach both batteries. You want to make sure that both cars are separated and don’t touch each other when you do this. You also want to make sure that you take the keys out of the ignition for both vehicles. For each of our vehicles you want to find the battery and find where the positive and negative leads are. This is my truck battery, this is the battery that works. So here’s the positive, it’s Red, and then here’s the negative, it’s Black. Now if we go over to our van which is not starting, we can look at the battery, And you can see right here, Black cable, that’s our negative, and then this one is our positive, it’s our Red cable. So, once you identify that, we could begin. Now you’re gonna want to take your jumper cables and spread them out, so you have one Red one Black in each hand, and just detangle the wires Here’s the dead battery in our van, and we’ll take out the jumper cables. From this point forward, we don’t want the jumper cable ends to touch each other. The first thing we’re going to do is take the one side of the jumper cables, We’re going to get our Red, which is our Positive, and we’re going to attach it to the positive side of the dead battery. You want to make sure you get a good connection right on that battery post. You can see that these copper pieces are touching the metal on the post, and there’s a good connection. If you want you could wiggle it around a little bit just to make sure you get it in there good. The reason why you touch the Red cable to the dead battery first is because the dead battery doesn’t have as much energy as the good battery, so starting here is the safest. You could take your ground and just put it on a piece of plastic. You don’t want your ground touching any bare metal, ’cause then you’ll be grounding it out. You could just leave it there for now, we’re gonna connect it to the battery in a second. Now we’re gonna go over to the good battery. We’re gonna grab both of our leads just like we did before, don’t touch them together. We’re going to take our Red one and put it on the positive terminal, which is also Red. At the good battery we’re gonna get our black lead, and we’re gonna attach it to our negative side here. So we’ll attach this here. Now we have the Black lead and the Red lead on the good battery attached. Back at the dead battery, this is the last lead we have to attach, but you aren’t going to attach it to the negative battery terminal. Touching the lead to the negative battery terminal will cause a spark, and these sparks can ignite any fumes from the battery, and cause an explosion. Batteries could create hydrogen gas, especially when they’re run down and not working properly, and hydrogen gas Is explosive, so to play it safe, just find another grounding point. Some cars have a ground spot away from the battery specifically for jumping your car, so check your owner’s manual. If not, find a bare piece of metal for a ground, that isn’t a moving part, and that isn’t attached to an electrical component. So when looking for a ground, you want to try to find something that’s bare metal If we look here, there’s a nice ground here, but unfortunately this wire is pretty thin, so if you don’t have a good connection to this ground, this wire is thin, so you could actually melt it. A good spot to look is on the engine. When we’re looking at the engine here, here’s a nice bear piece of metal, my only problem with this bear piece of metal is that it’s right next to the fuel pressure regulator, and we’re trying to avoid sparks next to anything flammable, so this isn’t a spot that I would want to use. But it’s nice because it’s a nice thick piece of metal, it’s bare metal, it’s directly connected to the engine, so you get a good ground. In my case what I’m going to do, is I’m going to go find the Strut tower. And as you can see on my strut tower, there’s a bunch of good bolts that provide a good ground, and they’re also bare metal, so we’re going to attach it to that. The other good thing is, this strut tower’s away from the battery, so we don’t have to worry about sparks. But there’s tons of grounds that you could use, in this case this is just one of them. Just get in here and clamp right down onto that, and make sure you have a good connection. So with our cables all set up one last thing you want to do is you want to inspect to make sure that these cables are not near any cooling fans, you can see our cooling fans are over here, so we don’t have to worry about that, and our serpentine belt is on the other side so we don’t have to worry about that. Now that our cables are clear let’s check out the other side. Moving to the good battery side the fan is right here as well as the serpentine belt, and our cables are out of the way over here, so we’re ready to jump the vehicle. Now we’re gonna start the engine on my truck which is the good battery, and let it run for two minutes. (Truck running) My trucks been running for about two minutes so we’re going to start the engine in my van. Hopefully it’ll start up. (Van starting) There we go. Now right away, You want to go and take off the negative terminal first. And now if I take this off and it sparks, it’s away from the battery which is being charged, and potentially creating hydrogen gas. If we took off the Red terminal first, we could create a spark right here, which is on top of the battery which wouldn’t be good. So we’ll remove the negative terminal first, don’t let this touch anything, and then we’ll remove our positive terminal on the bad battery. Make sure these don’t touch. Then you remove the Red cable, and then the Black cable. And now your car is started so you’re not stranded anymore. So let’s just give a scenario where you go to start your car, and it doesn’t work. It slowly drags, but you don’t get the car started. Let the car sit for another five minutes, Let that other car that’s running charge up your battery. Essentially the alternator in the other car is charging your battery, so, sit for five more minutes, take the key out of the ignition, and then in five minutes try starting it again. If it seems like you’re really close to starting, but you just need a little bit more juice Have that person in the car with the good battery rev up the engine to about 2,000 Rpms, and hold it there as you try to start the vehicle with the dead battery. This will get the alternator spinning faster so you’ll have more power to start the car with the bad battery. After all that if all you get is a click, and you can’t start your engine, your battery could be permanently bad, there could be a bad cell in there, it could be shorted internally, but before you give up, make sure that you have a good connection on both the positive and negative terminals. Make sure you check the connections on the bad battery, as well as the good battery. Another thing to do, is if you attach it to this ground, and it won’t start the car, try connecting it to a better ground. A lot of times switching to another ground will start the car Hopefully this video taught you how to properly jump your car If the video is helpful, remember to give it a thumbs up. Also consider subscribing. The top tip for this video is. What if you’re using one of these portable jumpers? These portable jumpers are great to have in your car, and they’re really easy to use. Plus you don’t have to rely on anybody to be there to help you jump your car you could do it yourself. With one of these jumpers all you have to do is make sure that’s in the off position. Take your red jumper cable, connect it to the positive terminal, and then your black jumper cable could actually connect directly to the battery. There’s no need to connect it to a separate ground like when we did when we jumped the car. Because there’s an on/off switch there’s no electrical current going through these jumpers. If you really wanted to you could touch the two jumpers together and nothing will happen. So when we’re connecting the black lead to the negative terminal, there’s no sparks at all, so we can connect directly to the battery’s negative terminal. Now all we have to do is turn it to the on position, and we’ll go start the car. (Car starting) She started right up, right away just switch this off, and then you can just disconnect both of the jumper cables, and you’re good to go.

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100 thoughts on “How to Properly Jump Start a Car

  1. VERY VERY HELPFUL!! My son's friend left his headlights on all night! My husband wasn't home and my two sons and their friends didn't know how to jump start the car so I looked in my van and found the jumper cables and I went on You Tube and punched in how to jump start a car and yours was the first one to come up. It was my first time doing this and I LOVED LOVED how you explained EVERY step and the tips you added were helpful and good to know!! THANK YOU THANK YOU! I HOPE YOU KNOW HOW AWESOME YOU ARE!

  2. heard dont start bad car with goid car still running. – you dont want 2 alternaters charging the system. to shut off good car. then start bad car

  3. disagree order disconnect cables i leaned.
    hookup
    1 + good car
    2 + bad car
    3 – good car
    4 ground bad car
    unhook
    do steps in reverse 4 – 3 – 2 – 1

    you did 4-2-1-3

  4. We just jump started a car, and did what we were supposed to do: Place the negative cable on an unpainted metal surface of the dead car. But the car wouldn't turn on!! We got really annoyed so finally we just connected it to the negative battery post of the dead car's battery (Which youre not supposed to do) and the car turned on immediately… Why are we 'supposed' to connect the cable to a bolt and not the negative battery post?

  5. pffft why do i need to learn this. ill just call roadside assist and they will come help. im a homosexual and i voted for hilary clinton

  6. This is great for older cars….boy try finding the posts on the new vehicles ….there r multiple lines to the battery!

  7. Ohhhh nooo chris. Both cars not started? Connect dead 1st? I be rollin witchu but like Rico said to Mitch, "u off right here."

  8. I helped a guy boost his car he and some other guy they did it so wrong I saw sparks flying and I told them STOP your gonna mess up your shit I had to help em man and gave them your YouTube channel

  9. Also you can have someone push your car and use the momentum to make the transmision spin the engine and start the car.

  10. Hi Chris, can u put one of those portable jumpstarters directly on to the leads of a car that doesnt have a battery in it?

  11. Now if your HORSE won't start, hook up the jumpers to the good battery first and then clamp the other ends to your horse's bollocks. Works every damn time.

  12. Yesterday I jump started a friend's car, I tried reading the instructions on the box and they were confusing AF. This video made WAY more sense!
    Thanks, now I know how to properly jump start a vehicle. Although connecting the negative(Black) to the dead battery's Negative (Black) did not cause any sparks, but I will connect the dead battery's black negative to a grounded metal bolt next time.

  13. Because i have very good rally english, i thinked this is video about how to start car without keys

  14. Hey ChrisFix, Just wanted to pass along my thanks for your very helpful video. I followed your simple instructions and jumped my dead battery, without electrocuting myself!

  15. I had a flat battery, I was alone at home, So I went on You Tube and punched in how to jump start a car and yours was the first one to come up. It was my first time doing this and I LOVED LOVED how you explained EVERY step and the tips you added were helpful and good to know! Thank you so much THANK YOU! I HOPE YOU KNOW HOW AWESOME YOU ARE!

  16. Are you sure it's a good idea to have two alternators trying to charge what is effectively one large battery while they are both running? I have 400 amp leads and turn the donor car off while jumping. What amperage are those leads you're using?

  17. Holly shit. U Talk so slow get the fucking pooint dudee otherwise us the people are going to ruuush the shit out of you

  18. what about the battery charger thingamajigs? I have one it, charged my dead car battery, after I left the car keys in the ignition all night

  19. Why you can't touch them together both positive and negative? If only positive is connected to the battery when you start

  20. All I have to say is this: if you don't know how to jump start a car, then you definitely don't need to be driving a car!! THAT'S A FACT. OH, btw..if you don't know how to jump start a car…then your probably a liberal thar expects the government to do it for you out 9f MY tax dollars!!!!

  21. If you take time to clean the Head of those Battery poles, you might actually have an undead Battery.

  22. Why didn't u connect the negative terminal of the bad battery?? I didn't get your point.. I usually jump start my car connecting positive to positive and negative to negative with another battery

  23. Thanks, Chris! Stranded at my own front door, no one could help me 🙁 just to let folk know an idea to get a jumpstart when no one around can help – call a taxi (cab) and ask if they would be so kind as to send a cabbie to jumpstart you. And offer to pay.
    In my case, a terrific kind cabbie came and didn't even want to take a payment, but I insisted.
    He then said well any time you need it started again just call and ask for me by name. So thoughtful and obliging!

  24. Dude you need to be punched, that is not how you jump a car. You always connect the black/ground first. Horrible information.

  25. this is bang on..!!! question, can sitting and idling be enough to charge, if so, what minimum rpm and how long or "does it depend"…or should you really "give it 20 minute run-out"?? xlnt vid… odd why some say negative first?? it's currently lunchtime, thankfully noticed the flat battery, contemplating a call to the RAC later to coincide with leaving work… BUT, experimented with turning off lights (!!!), leaving for a few minutes and retrying…. BINGO!!! it started, but I'm currently sat in a cut-throat work's car-park I can't risk leaving to properly charge, so revving between 2,000 to 3,000 rpm hoping this is enough for 15 minutes or so????

  26. Wear safety glasses, or even any kind of available glasses when working around batteries. And keep the posts clean to avoid not starting because of a poor connection.

  27. I wanna say thank U 😉 I have seen this done many of times! … however this is my first time ever! With no one but U & this YouTube video. Now here's the scenario I used my 92 Honda to charge my 01 BMW . But the battery is in the trunk😐 I got creative & used the ground cables on the battery metal bar 🤔 I guess that's the battery handle .the actual battery was so dead! The cables I had to work with had exposed wires?😱 WTF… I followed all the instructions In this video. I had to let it sit for 20 minutes I tried to start the BMW still Dead 😕 so I revved it up to 20 RPMs counted to 55 twice I put the key in with confidence & the Bimmer start up 👍I waited for another 15 minutes even though I had to work with what I had😅 ur video still allowed me to be safe now I'm driving 😉 thanks 👏

  28. Im not giving anyone a jump unless it's family. Even then Im not doing it until I disconnect my battery. It's too easy to mess up a modern day car.

  29. This video is fantastic Chris, thank you! One thing I do want to mention: if you have a portable jumper, make sure to read the instruction manual of how to jump start your car, because not all portable jumpers are the same. For example, I have the Stanley Power iT Digital Power Station, and it says to contact the negative cable to the vehicle chassis or engine block away from the battery. Always best to play it safe ✌

  30. I clip the leads waiting to be hooked up to my belt loops on my pants while hooking up the other car so that they are not lying on the ground where they could be kicked and possibly come into contact with one another.

  31. You fucking way over complicated this shit…. Ha! Hydrogen???? Explosions!!!!! Hahahahahha! You got my brother thinking his truck is gonna blow up if he jumps a car….. Hahaha

  32. What do you do if the STARTED don't work outside your home. N the car won't start. Is there any trick for starting the car

  33. I'm about to start driving lessons in the coming days, started looking for tips about driving and must know things for owing a car, and here im very pleased with your channel, really helpful 👍👍

  34. I had to jump start an acura tl using my wifes hemi grand Cherokee. For some reason it still would not crank over. I connected directly battery to battery too, not the jump terminals. Should i not be using the ground terminal on the battery? I felt dumb

  35. I like most of your videos, but this one if full of shit, this is the biggest gimmick mechanics use when jump starting your car to tell you there's more wrong than the battery, even I had a jackass try to pull this trick on me, there is  absolutely  only way to jump start a car is pos terminal to pos terminal and neg terminal to "negative terminal" any other way and you'll probably end up with a car not starting and thinking there's something else wrong, as I'm 70 I know wtf I'm talking about, and you have completely botched this video, and will cause many people real aggravation and money. oh, btw, I've had to jump start many cars in my lifetime, I'm still here, aren't I

  36. Your video was very helpful! I was parked next to someone who needed their car jumped and they didn’t seem to know what they were doing so I went on youtube and searched for a tutorial to help and your video came up and their car started after telling them the steps you mentioned in your video 😀 they very much appreciated my help ◡̈

  37. Great video! Just one thing: revving your engine is not necessary, just let it charge for another 5 minutes. Revving your engine may increase voltage slightly, but it's the amps that are needed to start the car 🙂

  38. Thank you! I knew the basics but had forgotten some points. Excellent, informative, easy to follow presentation!

  39. Thank you!!! You just talked two women, who know NOTHING about cars, through jump starting a car. I loved how you explained everything. Thank you, again.

  40. How about a jumper cable with a switch somewhere in the middle?
    Every car should have a "socket" (with a safety plate / lid on) where you can attach a portable jumper without popping the hood, then switch on & start => Grace under pressure 😉

  41. Most folks ought to get some of the jumper cables or the ones that have a battery that won't allow you to hook them up wrong. I've never seen it done wrong but have heard a lot a bad stuff happens when you do. Almost seem like they ought not to sell plane cables to the general public. Kind of like the making of laws and sausage, shouldn't be seen or done by the general population.

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