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Your alt might still be good. I can't remember where I saw it but Dom did this huge write up on how to test HO alts because most of your local mechanics don't do it correctly. It might be on this site but I know the write up exists.

Member since 25 Jun 2006

2011 Yukon DenaliCustomLightz 4300K HID RetrofitEsky TailsEsky Third BrakeEsky 22sEsky Appliques

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the problem you run into with conventional battery, starter draw, and alternator loading equipment such as the VAT 45 is that it cant test a diode trio that has been beefed with 8 diodes which is common in a HO alt. it will flag a bad diode reading everytime.

Daily Driver 1999 Kia Sephia

Kenwood DNX-893s
Audison Bit One Processor
2 Dat 4.125's
Sundown Audio SCV-6k
Hertz hsk-165xl's Mids running active                                                                                                                                                                                                                                                                               Focal V30 Series Tweeters running active 
Sundown Sa-8 v1's in the doors
2 Sundown Zv5 12's 
Lots of Hushmat
Big 3+ and 3 + & 3- runs of Trystar 2/0
2 Dc Power Engineering 320 HP Alts

2017 Comp Vehicle
2006 Toyota 4 Runner
Kenwood Excelon DNX-893s                                                                                                                                                                                                                                                                                         Audison Bit One HD DSP
4 Sundown Sa 6.5v2 Component Sets 
Focal Access 6.5 2 ways
Sundown Audio Sax-50.4                                                                                                                                                                                                                                                                                       Sundown Audio Sax-100.4
2 Dc Power 370xp
Northstar agm27f
Northstar agm65
2 Northstar asmagm 480's
2 Dual 1 Sundown Nightshade v3 12's
2 Sundown SCV-7500's
All SMD Fuse Holders
Shitload Of Sundown 1/0

120 sq ft Second Skin Damp Pro

No, Its Not A Burp Truck!!!!

2016 Season 3rd place in Xtreme 1 At Finals

2016 Season 6th Place In Kaos 1 At Finals ( Blew The Subs Up In First Round Eliminations)

2 Kansas State Records Set In 2016 In Xtreme 1 And Kaos 1 In Midwest SPL

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David said:

audio is a lifestyle, not a hobby

newls1
I cant read a tape to save my life... 1/2's are ok, but other marks confuse me
kingsuv
only men who cant read a tape, take it in the ass
kingsuv
you sir, get a pink hard hat on jobsites

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the problem you run into with conventional battery, starter draw, and alternator loading equipment such as the VAT 45 is that it cant test a diode trio that has been beefed with 8 diodes which is common in a HO alt. it will flag a bad diode reading everytime.

Excellent info Kandiman. I always wondered why they could never get a proper reading.

Member since 25 Jun 2006

2011 Yukon DenaliCustomLightz 4300K HID RetrofitEsky TailsEsky Third BrakeEsky 22sEsky Appliques

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easiest way to check that thing to see if it is the draw with a stuck regulator is to just unhook it, regulator side first and if that dont get it then the B+ on it. Obviously if that dont get it, move on to something else. its a long ass game of elimination its just to bad it isnt as much fun as playing naked twister with nothing but yourself and all females lol

Daily Driver 1999 Kia Sephia

Kenwood DNX-893s
Audison Bit One Processor
2 Dat 4.125's
Sundown Audio SCV-6k
Hertz hsk-165xl's Mids running active                                                                                                                                                                                                                                                                               Focal V30 Series Tweeters running active 
Sundown Sa-8 v1's in the doors
2 Sundown Zv5 12's 
Lots of Hushmat
Big 3+ and 3 + & 3- runs of Trystar 2/0
2 Dc Power Engineering 320 HP Alts

2017 Comp Vehicle
2006 Toyota 4 Runner
Kenwood Excelon DNX-893s                                                                                                                                                                                                                                                                                         Audison Bit One HD DSP
4 Sundown Sa 6.5v2 Component Sets 
Focal Access 6.5 2 ways
Sundown Audio Sax-50.4                                                                                                                                                                                                                                                                                       Sundown Audio Sax-100.4
2 Dc Power 370xp
Northstar agm27f
Northstar agm65
2 Northstar asmagm 480's
2 Dual 1 Sundown Nightshade v3 12's
2 Sundown SCV-7500's
All SMD Fuse Holders
Shitload Of Sundown 1/0

120 sq ft Second Skin Damp Pro

No, Its Not A Burp Truck!!!!

2016 Season 3rd place in Xtreme 1 At Finals

2016 Season 6th Place In Kaos 1 At Finals ( Blew The Subs Up In First Round Eliminations)

2 Kansas State Records Set In 2016 In Xtreme 1 And Kaos 1 In Midwest SPL

2-1.jpgsa.jpg
DCPowerLogoTransparent2.png

David said:

audio is a lifestyle, not a hobby

newls1
I cant read a tape to save my life... 1/2's are ok, but other marks confuse me
kingsuv
only men who cant read a tape, take it in the ass
kingsuv
you sir, get a pink hard hat on jobsites

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A little update, I got the factory back in and drove it for few days and it started back up in the morning but the voltage seemed low at start up then I went let it sit for 2 and half days and it wouldn't even crank it was like at 4 volts now I'm back to were I started

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So it wasn't the alt then. That means there's a short somewhere. Maybe something has been overlooked. I guess you gotta go thru it with a fine tooth comb. Maybe you've already stated this, but how old is your battery?

Member since 25 Jun 2006

2011 Yukon DenaliCustomLightz 4300K HID RetrofitEsky TailsEsky Third BrakeEsky 22sEsky Appliques

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