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New Battery, New Alt, fixed D+ and still sucking all power
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rogertj
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Joined: October 07, 2008
Posts: 347
Location: Tijuana, B.C. Mexico
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PostPosted: Thu Sep 26, 2019 8:32 am    Post subject: New Battery, New Alt, fixed D+ and still sucking all power Reply with quote

So Hey guys how are you doing?

So don't know if you remember mi previous thread

https://www.thesamba.com/vw/forum/viewtopic.php?t=724532&highlight=

but I went ahead and bought everything new or exchanged it for new and the problem did not got solved, got a new battery at 12.75 Volts, New Alternator and fixed the blue alternator wire:

Image may have been reduced in size. Click image to view fullscreen.


The blue wire was at 1.3 volts I believe... Is this accurate?

When the Van was at idle the voltage began to drop when the fan was on. The Alternator at idle was reading 11sh but when the fan started to work the voltage dropped to 10.70,

Then after disconnecting the battery it had 11.40 volts remaining.

Do you think it could be a dashboard relay or the fan relay thats causing this problem?

Thanks, guys for helping me out.[/img]
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Roger
Had a Carbureted ABA after engoing the heck out of it now going for ABA 2.0 Jetta EFI ill put a garrett in to the tin can
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0
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MarkWard
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Joined: February 09, 2005
Posts: 15061
Location: Palm Beach County, Florida
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PostPosted: Thu Sep 26, 2019 9:14 am    Post subject: Re: New Battery, New Alt, fixed D+ and still sucking all power Reply with quote

Key on, blue wire disconnected from the alternator, I would expect to measure battery voltage at the end of the blue wire.
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1982 Vanagon Camper with ALH TDI.

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rogertj
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Joined: October 07, 2008
Posts: 347
Location: Tijuana, B.C. Mexico
rogertj is offline 

PostPosted: Sat Sep 28, 2019 10:37 am    Post subject: Re: New Battery, New Alt, fixed D+ and still sucking all power Reply with quote

MarkWard wrote:
Key on, blue wire disconnected from the alternator, I would expect to measure battery voltage at the end of the blue wire.


Thanks Mark problem solved, it was my fan sucking all the juice from the battery because I have it direct I tested it out crossing the border turning it on for one minute and turning it off for one minute and the battery was with its power. In the night when I turned the lights on the voltage decreased a little but voltage remained the same. It was the fan that I left it on for a while and it was sucking all the juice from the battery. Next step to put its normal thermo fan switch and change the radiator.

Thanks !
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Roger
Had a Carbureted ABA after engoing the heck out of it now going for ABA 2.0 Jetta EFI ill put a garrett in to the tin can
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0
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