75amp fuse?

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zach-Ka
Posts: 1549
Joined: Wed Oct 17, 2007 9:08 am
Car: 1990 240sx (SR)
Location: Greeneville, TN

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Any one know why I would pop the 75amp fuse immediately when turning the key? Any help would be appreciated.

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dccse3k
Posts: 78
Joined: Fri Feb 27, 2009 5:56 pm

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well if you are blowing it then for some reason you are getting more than 75 amps. V = I*R so if V is 12v and I is above 75 then i would think your resistance is abnormally low. Maybe a bad alternator? or just a short somewhere

keep-blowing-my-75amp-alternator-fuse-help-t257412.html

that thread may help you
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gwar10
Posts: 19
Joined: Tue Oct 12, 2010 8:31 pm
Car: 1989 240sx ca18det

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had the same problem,when you turn the key and it blows it means your alt shorted out,and needs to be replaced
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