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Old 11-10-2014, 09:35 AM   #1
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Battery question

OK, I've been around cars for almost fifty years and just heard a new one that I put in the old wives tales (BS) column. I was working the Fort Worth Auto Show the past few days where our Mustang Club had a display of 7 cars. Since it was an indoor show the batteries had to be disconnected. In all my years I had always disconnected the ground (-) terminal first because if while doing this you touch your wrench to any metal nothing will happen. Well one of our younger members insisted that you have to disconnect the positive (+) terminal first or it will do something terrible to the ECU. By doing it in this order one takes a chance in grounding out the wrench causing massive schpitzen-schparken. I say killing power is killing power regardless of which terminal is disconnected.

If I am wrong, convince me how.
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Old 11-10-2014, 10:04 AM   #2
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From page 242 of the 2013 Mustang owners manual: It is recommended that the negative battery cable terminal be disconnected from the battery if you plan to store your vehicle for an extended period of time.


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Old 11-10-2014, 10:08 AM   #3
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From page 242 of the 2013 Mustang owners manual: It is recommended that the negative battery cable terminal be disconnected from the battery if you plan to store your vehicle for an extended period of time.
Thanks, that's what I have always said.
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Old 11-10-2014, 10:12 AM   #4
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Old age and treachery can overcome youth and skill.


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Old 11-10-2014, 12:57 PM   #5
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Quote:
Originally Posted by Jd431x1f View Post
Old age and treachery can overcome youth and skill.
Anytime baby, anytime.
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