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When I connect my battery I connect the positive first then I go for the negative and when it touches the battery it makes a spark and melts my battery terminal....

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You have a serious short, more than likely your starter os wires running to it. most of your circuits are protected by fuses or circuit breakers, the problem is often wear under you engine around the frontend

Posted on Nov 25, 2013


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Posted on Jan 02, 2017

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SOURCE: not making any connection the negative wire form

You blew your fusible link. Maybe a couple fuses too. You are gonna have to locate a manual and find out where the fusible links are located. Usually under the hood, either close to the battery or on the firewall, but they can be just about anywhere hidden in the wiring.

Posted on Jul 08, 2009

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SOURCE: I cannot remember which terminal

You need to make sure the battery is unpluged my friend when you do that. You could get shocked. What model, make, and engine is it?

Posted on Feb 24, 2011

Testimonial: "I apologize for taking almost 3 years to respond, Richard Hale! This is in a 1982 Ford E-150 van. There is a newer (22,000 miles) 302 in it, the previous owner installed after purchasing the long block from (then) Checker Auto back in 2006. He had 4,600+ miles on it when I bought it. I have put the remainder of the 22,000 on it, since late 2006. It has been sitting longer than it has been driven. (obviously) This last "sit period" has been for a little more than 1 1/2 years and I would like to start it for the 1st time in that long, soon. Do you have any suggestions or "pre-start advice"?"

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SOURCE: what is the problem when the negative battery terminal melts off?

Sounds like a loose connection on the negitive terminal itself or on the reverse side of the connection causing heating due to high resistance.

Posted on Oct 17, 2012

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How do you test an ignition coil

Remove the lead the spark plug, and then remove the spark plug, connect the spark plug back to the lead. Remove the positive and negative wires from the coil. Replace them with a negative and positive direct to the battery, but don't connect the positive to the coil. Hold the spark plug to a grounded part of the car, touch the positive lead to the coil, when you RELEASE the wire from the coil, you get a spark.

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Just make sure the key is off, then disconnect the battery-negative terminal first, then the positive. If key is off, no harm will be done when replacing the battery. When hooking up new battery, positive first, then the negative. In that order, because were you to hook up negative first, you can cause a spark when tightening the positive, if your wrench were just to touch a metal piece while tightening the cable end bolt. So, taking off: negative first, then the positive; putting on-positive first, negative last.

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Where do positive and negative wires connect

In a way, its how electric works. For a DC system you need both charges. The fuse holders, Relays, lights, and other parts need to connect and within the part they meet and function.
In every other instance, you have problems when bare wires touch each other with 2 different charges.
To give you an example, you have 1 wire to each sparkplug. But the engine is grounded with a negative charge. So you only need to supply a positive charge through 1 wire to make a spark.
Instead of a spark, other devices either glow or turn to use the combined electric charges. Without a job for each charge to do, the wires melt or fuses melt because the 2 charges are not compatible.
The main Negative wire usually mounts on the engine. The main positive usually goes through fuse boxes which reduce the charge values.

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My 1997 Chevy Lumina will not turn on. I thought it was the starter since it started having difficulties turning on. The security light on the dash is permanently on. So i replaced the starter and tested...


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Hi, I have a 2008 Pontiac G5 and I accidentally kept the lights on all day. Since I only have a positive (red) connection, I ground the negative connection to metal as well as the other car negative...

sounds like you are on the right track. Hook the jumper cables up to the dead car first. The red cable should go to the jumper terminal as you mentioned and a good place to hook up the black cable is the bolts on the strut tower.

then with the other car running hook up the red lead to the cars positive battery cable and then the negative to a good ground. Let the two cars sit for about 5 to ten minutes to give the dead battery a chance to charge.

Once the dead car is started let it idle with the lights turned off for at least 45 minute to an hour or drive it for the same amount of time with the light on (I assume you will be driving in the dark) or if its day time drive it for 30 to 40 minutes with the lights off. This should be enough time for the alternator to charge the dead battery.

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1 Answer

How to jump started,can i use a bmw 318

You can use any vehicle you have available, as long as the battery you are jumping from is a 12V battery. (Which the BM's is)
This is the textbook recommendation:
Using a set of jumper cables, the thicker the better, connect the positive on the 318's battery to the positive on the Montero. The cars should not be touching(metal to metal anyway) Next the negative on the 318 to the engine block of the Montero. Start the 318 and then attempt starting the Montero. Once started, switch on the headlamps of the 318 and disconnect the cables, Montero negative first then 318 negative, then Montero positive and last 318 positive.
This is my way:
Connect cables, battery to battery, first positive then negative while making sure you touch nothing else on either vehicle.(Connect good battery first then flat battery) Your battery contains a lot of stored energy and also explosive gases, YOU DO NOT WANT A SHORTCIRCUIT, or sparking at the good battery for that matter.
Start the vehicle with the good battery. Let it idle for at least 10 minutes allowing the charging system on the (318) to replenish both batteries. Patience is needed.
Once started, and before disconnecting, switch on the headlamps on both vehicles. This is to prevent a voltage spike caused by the sudden disconnection damaging any electronics on either vehicle.

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1999 A4: glow plug replacement...

Its very similar to replacing a spark plug. Unless you have a scheduled maintenance interval you just leave them alone.

If you are having problems you test each glowplug in the following way. Remove the glowplug from the engine. Get car jumper cables and put the negative wire on the casing away from the threads. Touch the positive cable to the top structure of the glowplug causing sparks. This is of course having the battery cables connected to the battery appropriately.

You can melt the glowplug. But if the glowplug resists heating up, resists glowing, it is bad. Just ordinary small gauge wiring will melt. You need jumper cables and even they can get hot. Thats all truckers have done for the big rigs.

May 03, 2010 | Cars & Trucks

1 Answer

Tried to jump my 2003 galant and the cables would spark when trying to connect negative

Be ceratin you have jumper cables to correct terminals. Also, you may connect both jumper cables to the battery of the car your getting power from (be certain not to let other ends of cables touch) connect the positive lead of car being jumped to the battery's positive terminal, then connect the negative lead to the cars ground, not directly to the negative on the battery. Getting a spark when jumping is very common. You do not want to create the spark at the battery because the fumes from the battery acid can be explosive...... That can go very bad! When removing remove the grounded, to the jumped car, and then carefully remove the rest. Again be certain to not let the leads touch.

Please let me know if this had assited you,


Apr 20, 2010 | 2003 Mitsubishi Galant

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