Question about 1998 Acura TL

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Why do fuses blow - 1998 Acura TL

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Fuses are safety devices designed to blow (or open) to protect wires from over heating due to excessive current.

A wire that is too small to pass more current than it can do safely, will overheat and cause insulation to melt or burn. Providing a fuse that is equal to or less than this amount in the circuit, will prevent to possibility of overloading the wire.

Typical fuse values for copper wires are:
10Amps for #16,
15A for #14,
20A for #12,
30A for #10
40A for #8
and so on.

When you add a small accessory (1 or 2 amps) to an existing 15 amp circuit that supplies say - a radio that only uses 8 amps, you don't create an overload. When you attempt to connect a larger accessory such as a two radio or stereo amp that requires 15 - 20 or more amps to a 30 amps circuit - that has a fair amount of load already, fuses will blow.

Never connect a device wire large wires to auto wiring that is smaller - this is a tip off that you're going to be overloading the circuit. Large current devices (higher amp rating) should probably be connected directly to the battery or other dedicated, unused accessory terminal in the fuse block. You can use a relay (rated to carry more than the current required by the accessory) to that is energized from the ignition key if desired to keep from leaving it powered when you leave the car (and finding a dead battery the next day).

Whatever you do, do NOT replace a fuse with a higher amp rating than the original, otherwise the wires will melt before the fuse blows.

I hope this helps & good luck!

Posted on Apr 16, 2014

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Overload will blow you fuses.short to ground. wtich fuse is blowing?

Posted on Apr 16, 2014

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