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Major Voltage issues. FML


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bingo try replacing the fuse first of all.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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I think it's the alt, that is dieing. :peepwall:

Advanced autoparts can't test alternators correctly, look at Dominic's vids. :P

Dominic? Iraggi? And linK?

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have you checked voltage before and after the fuse holders?

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

it shouldnt make a difference

It will just be higher with the car on. Cant hurt to try it both ways but either way you should notice a difference

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

after that move on down the line. It seems like you are getting loss on your power wire so find out why. pull the panels check for nicks or major chunks missing things like that. check the terminal on the amp. make sure nothing is keeping you from getting a solid connection etc.

if you arent beating on it while you do this oyu shouldnt see any drop from front to back really. maybe a tenth or two. since you arent pulling major current then it should not need to be produced by your alt to recharge the battery

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

this doesnt make any sense. from the battery, the voltage starts at 14.8 and drops to 14.2. when you check the alternator, its putting out 13.2. the alternator generates the power and the 14.8 volts, so how is it so much lower from the alternator to the battery?? wouldnt it be the other way around?

wizv.jpg

200a alt. by Excessive Amperage

hc800 under hood & 2 Deka 9a31 in rear

1/0awg + big 3

SAZ 3000D

HDC3 18" @ 2 ohm

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this doesnt make any sense. from the battery, the voltage starts at 14.8 and drops to 14.2. when you check the alternator, its putting out 13.2. the alternator generates the power and the 14.8 volts, so how is it so much lower from the alternator to the battery?? wouldnt it be the other way around?

chevy does weird things sometimes but i did over look that. im wondering if his cars alt is controlled by the bcm. Im willing to bet after he starts the car and lets it run the battery will drop down to the same voltage as the alternator.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

Before and after front fuse is .3 difference. Rear is the same 12.2 before and after fuse. I let my car stay on for about 10 minutes earlier and voltage at battery stayed up around 14.2

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