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Old 03-15-2021, 07:14 PM   #1
Sick5
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Voltage drop on acc

I'm pretty sure I'm going to need another switch. So the issue is on acc or what power is coming off my switch to my fuse box is showing 1.0 difference than what I have on hot. So things get power when the key is on is showing 12.4 while it's on. Battery and alt show 14.5 wire from the starter to the fuse box show 14.5 . power coming from the fuse box to switch 14.5 switch out 13.5

Just want to see if anybody experience this or is this normal?
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Old 03-15-2021, 08:42 PM   #2
Steeveedee
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Re: Voltage drop on acc

Are there things powered downstream when you make that voltage check? Any drain downstream is going to cause a voltage drop, even if you had a direct connection. Or is everything downstream turned off? If so, that voltage drop seems high to me. I don't know what mine looks like, though. How old is the switch?
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Old 03-16-2021, 12:13 AM   #3
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Re: Voltage drop on acc

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Originally Posted by Steeveedee View Post
Are there things powered downstream when you make that voltage check? Any drain downstream is going to cause a voltage drop, even if you had a direct connection. Or is everything downstream turned off? If so, that voltage drop seems high to me. I don't know what mine looks like, though. How old is the switch?
Its a new switch. Wierd getting a drop only From the key switch.
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Old 03-16-2021, 08:38 AM   #4
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Re: Voltage drop on acc

I wonder if it’s not because it’s a new switch and needs broke in I would try wiggling the switch not to the point you turn it of just enough you scrub the contacts and watch your meter and see if it improves??
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Old 03-16-2021, 12:09 PM   #5
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Re: Voltage drop on acc

I've never seen 14.5 battery volts in my entire life.

Do you have original wiring?
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Old 03-16-2021, 01:45 PM   #6
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Re: Voltage drop on acc

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I've never seen 14.5 battery volts in my entire life.

Do you have original wiring?
No all american wiring. 14.5 is at idle engine on.
I have n upgraded alt
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