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| Hooked up battery backwards | |
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| Tweet Topic Started: Mar 12 2015, 04:59 PM (993 Views) | |
| krr40 | Mar 12 2015, 04:59 PM Post #1 |
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New Member
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I did a very stupid thing!!!! Hooked up the battery backwards and it sparked. Now there is absolutely nothing. Any suggestions on what things to check? I realize this could turn out to be bad news... Dummies learn the hard way to slow down. |
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| snowfish | Mar 12 2015, 05:03 PM Post #2 |
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Basic GearHead
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Your fine. You blew the 60amp fuse in the under hood fuse/relay box. Get a new one, put it in, and Never do that again.
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| geogonfa | Mar 12 2015, 05:31 PM Post #3 |
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Edited by geogonfa, Mar 12 2015, 05:31 PM.
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| Coche Blanco | Mar 12 2015, 07:37 PM Post #4 |
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Troll Certified
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Happens to the best of us, snow fish's suggestion is right on the money, as usual. |
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| perfesser | Mar 12 2015, 08:19 PM Post #5 |
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Elite Member - Former Metro owner
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It is also possible that your battery could be toast. There could even be internal damage to the alternator if this wasn't your lucky day. I've seen it happen. Start with "A", but be ready in case there's a "B" or a "C". |
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| Stubby79 | Mar 12 2015, 08:59 PM Post #6 |
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| Stiffchezze | Mar 12 2015, 10:39 PM Post #7 |
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Sir Metrologist
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The fuse is held on with screws on either side at the bottom of the fuse block, it does not just pull out. And You probably will not be able to find a replacement 60A fuse locally. A 70A, which is much easier to find, will be just fine. Anything you can do to pop a 60A fuse, (like hook up a battery backwards ) will more than likely pop a 70A just as fast.
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| Bad Bent | Mar 13 2015, 12:14 AM Post #8 |
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Facetious Educated Donkey
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![]() My Geo came with a blown fuse.
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| fireflyin | Mar 13 2015, 12:53 AM Post #9 |
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dw i done that few times i said bypass the fuse and throw a inline fuse that is rated for 40amp no need for a 70 or 60 amp fuse that's just stupid
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| myredvert | Mar 13 2015, 04:45 AM Post #10 |
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myredvert
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Because, even though auto manufacturers are able to hire really educated and qualified electrical engineers who are familiar with and follow standard industry guidelines for system design and do stupid things like calculate proper ratings and safety margins for each component based on calculated loads and wiring size, they choose to only hire the real stupid engineers who don't waste time going through all that and instead roll dice, or decide what colors they think look the prettiest in the fuse box, or pick random numbers from a hat to decide what rating fuses to install. ![]() Put the correct size fuse back in, if you can get one. If you can't, go with one as close to the original rating as possible, such as the 70a stiffchezze recommended. Edited by myredvert, Mar 13 2015, 04:53 AM.
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| t3ragtop | Mar 13 2015, 05:10 AM Post #11 |
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Turbo3 and Twincam Tweaker
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fuses protect wiring. wiring is rated for ampacity, or the amount of current it will conduct. 60 amps is pretty much 5 amps over the limit for what the 6 gauge wire from the alternator to the fuse and relay rack is rated for so i would not even jump to the 70 amp fuse. ![]() there is a thin, welded rail used as a buss in the fuse and relay rack which routinely overheats, distorts, and melts the surrounding plastic so please pull the 2 mounting screws from the rack, flip it over, and inspect the buss rails on the bottom. |
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| perfesser | Mar 13 2015, 08:14 AM Post #12 |
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Elite Member - Former Metro owner
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Mine came with a "custom" copper fuse hand-crafted by the US Government, no less!! (Third photo down in the post.) |
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| truckjohn | Mar 13 2015, 08:29 AM Post #13 |
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I would start by checking the fuse also. If it's blown - they are commonly available at any Auto Parts store (Autozone, Advance, OReilley's, Napa, Carquest, etc)... They are NOT commonly available at Home/Box stores like Wal or K-mart, Home Depot, Lowes, etc. After a disaster with a bad starter - I carry a full set of all those fuses in my glove box.... If the fuse is blown and nothing else is wrong - consider yourself very lucky... You can easily blow the computer, alternator, and a whole slew of expensive sensors.... Thanks |
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| krr40 | Mar 13 2015, 12:08 PM Post #14 |
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New Member
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Thanks a bunch. Got the fused changed and it works fine. Hope I don't do that again anytime soon.... |
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| Hanuman | Mar 13 2015, 02:21 PM Post #15 |
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"The Almighty Grounds Cleaner"
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You blew the 60amp fuse in the under hood fuse/relay box.
Get a new one, put it in, and Never do that again.

) will more than likely pop a 70A just as fast.


i said bypass the fuse and throw a inline fuse that is rated for 40amp no need for a 70 or 60 amp fuse that's just stupid

7:58 PM Jul 10