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WHAT HAPPENS IF A CAR BATTERRY IS HOOKED UP BACKWARDS

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Can blow diodes in the alternator and ECM

Posted on Mar 22, 2016

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Posted on Jan 02, 2017

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I hooked the battery cables up backwards and it blew the magneto hooked the cables back the right way and it blew the magneto again the model#21R707-0011 10.5hp 344c


This doesn't sound like a car, but more like a riding mower or something.

Anyway, is it the magneto that "blew" or a fuse for the magneto? You don't mention that you replaced the magneto....

Some manufacturers incorporate reverse protection diodes that are supposed to cause a fuse to blow if the battery is hooked up backward. Unfortunately, the diode often becomes a short circuit when this happens and would explain why a primary fuse would blow again, even when the battery is hooked up correctly. If you have a wiring diagram for what you're working on, I'd suggest checking for a diode connected near the battery cables. If you don't have a wiring diagram for this, you're probably going to need one.

Oct 15, 2016 | Cars & Trucks

1 Answer

I hooked up my kicker ix1000.1 backwards now what?


if you have connected the power supply up backwards (crossed over plus to minus ) then im afraid you've damaged it internally , but if you have only connected the speakers backwards , that's not too bad . unpower it and ck your wiring to the speakers make sure all the speakers red or + goes to the positive or + on the amp and the negative goes to the other terminal

Apr 14, 2016 | Kicker Car Audio & Video

1 Answer

I have a 98 isuzu rodeo and my friend hooked up the jumper cables wrong one day and now none of my dash lights or any of the switches on my dash work (4x4, cruise control, etc.) and it's stuck in 4x4


What can be damaged by hooking jumper cables up the wrong way ...

https://answers.yahoo.com/question/index?qid..
May 3, 2011 - My car battery was dead so we asked someone for a jump and when we tried starting the car, the negative jumper cable on my car started ... what happens when you hook up car battery cables wrong?
Apr 12, 2013
Hooked jumper cables up wrong and radio won't work, why?
May 26, 2010
Hooked up jumper cables backwards now my car wont start no ...
Apr 2, 2009
What happens if you hook up jumper cables backwards on a car ...
Oct 4, 2008
More results from answers.yahoo.com

Do not connect your jumper cables backwards or bad bad ...

https://www.reddit.com/.../do_not_connect_your_jumper_cables_...
RedditOct 25, 2012 - Do not connect your jumper cables backwards or bad bad things ...What I'm trying to say is, does this usually happen when you hook the cables upwrong? ... So basically there is only one way to find out for sure what going to .

Oct 16, 2015 | Isuzu Cars & Trucks

2 Answers

2001 Mazda protege radio and lights in car not working after jumper cable s were hooked up backwards


Connecting jumper cables the wrong wat around most likely has damaged electronic components such as a radio and computer.
Check the fuse box and replace any blown fuses.
If you still have problems then get an auto electrician to fix your car.

Mar 06, 2013 | 2001 Mazda Protege

1 Answer

I changed battery's but I hooked it up backwards


you try to crank the car with the battery hooked up backwards?

How about after you fixed it?

Jan 01, 2013 | Cars & Trucks

1 Answer

2002 Pontiac Sunfire engine cooling fan


Just unplug the connection from the fan and run a ground and power wire from the battery [Tap it on the connection to the fan]. It doesn't matter how they are hooked up, it will just spin backwards if hooked up backwards. If nothing happens, you will need a fan motor. If the fan works, you either need a fuse or relay.

Nov 20, 2017 | Pontiac Cars & Trucks

1 Answer

Will only Sew in reverse.


Could be several things -- motor hooked up backwards, reverse is stuck, etc. Is there a Reverse on the machine? If so, what happens when you activate the reverse. If it then sews forward I would say someone hooked the motor backwards. If there is no change, it would be a problem with the feeding motor or the circuit board. Suggest taking to a reputable service center for analysis. Good luck.

Feb 01, 2010 | Husqvarna Viking 1

2 Answers

Screen wont open or eject disc HELP!


if you connected the blue remote wire to the batterry you burned the unit

May 13, 2008 | Panasonic CQ-VAD7300U Car DVD Player

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