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Serious Voltage Drop @ The Inline Fuse...


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That's how I read it and if so, take the fuse out, check resistance, and then put it back in if it's good and make sure the connections are TIGHT. I had a nut loosen up on my amp + input, caused my voltage to look like it was sitting in the 12's/13's when it was actually sitting higher. Normally heat would come with a situation like that, in my case it did and the bolt was hot to the touch, and I would think if you're seeing it drop that much, the fuse holder would melt.

Like said, check the fuse to make sure it's good, then check the connections on that fuse holder. Seems like the only two possible problems in that short of a distance.

Edited by Lbox88
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Normally heat would come with a situation like that, in my case it did and the bolt was hot to the touch, and I would think if you're seeing it drop that much, the fuse holder would melt.

This was my reasoning...but there were no signs of heat damage ANYWHERE...which is why I am dumbfounded. I tried 3 different fuse holders and 4 different fuses...all had the same problem.

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Check the voltage on the actual fuse holder itself. See if the voltage is 1.6v on the part that touches the fuse, then check each connection till you get to the amp, that should tell you where the drop is.

Have you tried a different power wire that runs to the fuse holder?

Edited by MrSkippyJ

 

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bypass the fuse holde rand link the two ends of wire together. what does the end of the wire look like? Is it ring terminals or a push block style? Any corrosion on the wire? Is it turning green? does he have a cap or anything in the back of the car? extra battery?

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That is weird.

Try a different battery just to rule out the battery does not have a dead cell. I am completely just throwing ideas out there.

Also was that test done with ignition on or off

Edited by Hotdog
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bypass the fuse holde rand link the two ends of wire together. what does the end of the wire look like? Is it ring terminals or a push block style? Any corrosion on the wire? Is it turning green? does he have a cap or anything in the back of the car? extra battery?

X2

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ok I see where you tested with car running. Turn car off and test both sides of the fuse with no load on it.

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