What happens if i hook up jumper cables wrong


To prevent the problems that have been mentioned above, below are some of the most important things that you have to keep in mind:. When you jumpstart your car the wrong way, there are many things that could possibly happen.

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The battery, jumper cables, and electronics will be damaged, including the fuse and the sensors. There is even a risk of explosion when the problem is at its worst. Once you realize that you did the wrong thing, you can fix the problem on your own. In most instances, you need to check the fuse. Chances are, one of them is burnt. You can buy a replacement for this and your car will be up and running in no time.

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Have you ever tried jumpstarting your car the wrong way? What did you do afterward? Share your opinions and experiences in the comment section below. A Guide for Novice Drivers. Tips When Jumpstarting your Car. Take a look at your jumper cables and make sure that they are in the right condition. They must be free from rust.

What Happens When You Jumpstart Your Car The Wrong Way: A Guide for Novice Drivers

If they are already worn out, even if you connect the clamp on the right terminals, it might not work out as expected. Read the manual before you start. While there are general rules when jumpstarting, there are some steps that you should not miss. For instance, in the case of newer car models, you might need to attach lugs before you jumpstart.

See to it that the car is in park or neutral.

The least that you would want is to be run over while trying to rescue your battery. If the engine of the vehicle with the charged battery is left running, the electrical surge can damage this vehicle's alternator.

When the jumper cables are incorrectly connected, the polarity of the electrical system on the vehicle with the dead battery will be reversed for a few seconds. This can irreparably damage many of the sensitive electronic components that are common on today's vehicles, such as on-board computers and electronic sensors. This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Runs, contact us. Damage to the Jumper Cables Jumper cables are not designed to carry the huge surge of electrical current, and will quickly heat up to very high temperatures. Damage Due to Incorrect Polarity When the jumper cables are incorrectly connected, the polarity of the electrical system on the vehicle with the dead battery will be reversed for a few seconds. Is it fuses or a starter? Any suggestions or comments are much appreciated. I would first have the battery, battery terminal cables and alternator checked.

A lot of shops may take that as a green light to tell you it needs a computer and make more money. You should go there and just tell them what the vehicle is doing without mentioning needing a boost to get started at all. Before people start getting on me for saying many shops are dishonest, let me tell you that I do a lot of side work on vehicles at my home and very often people bring it to me AFTER having it in a shop.

I can honestly say more than half of the people that come to me after going to a repair shop do not need what the shop told them. I also enjoy the ones that tell the customer that the problem is "nothing" and then when I look into it I find the vehicle needs something like a timing belt.

It's a Jeep Cherokee Sport. Page 2 of 4. To the OP btw The battery, jumper cables, and electronics will be damaged, including the fuse and the sensors. Is it fuses or a starter?

I suppose some shops are swamped with work and do not want to take on a large job at times. I can never understand why a shop would do this. If someone comes to me with a job that I feel I do not have the time to finish quickly I let them know what is wrong with it and let them know if they want me to do it I will have to have the vehicle for "x" amount of time and leave it up to them if they want me to do it or bring it somewhere else.

When you attach the wrong cables to the wrong nodes on a battery, it results in . Connecting the jumper cables the wrong way might actually. In my haste, I put the positive and negative clamps on the wrong terminals on my car (hers were attached correctly). RAY: Usually when someone crosses the terminals in a jump-start attempt, there’s a lot more electrical-system damage. RAY: By the way, they now sell “idiot-proof.

Originally Posted by Egobop. Originally Posted by Gimme3steps.

Your Answer

The more background info you can give, the better. It will definitely help with the diagnosis.

No different than going to the doctor and withholding important information. In my experience, if I say too much, they give the wrong diagnosis. I just tell them what's wrong and let them do their magic. I would tell them if it needs jumping, but would not say it was done wrong.