Charging problems

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May 4, 2012 | 11:57 AM

#21

BOTY79

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Instructor

Joined: Jun 2003

Posts: 193

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From: Central Ill

Quote:

Originally Posted by WW7

New AC Delco alternators use to come with a sheet inside that told you to charge the battery before installing the new unit or diodes could be blown.. Its been quite a few years since I purchased a new alternator, but I believe it had something to do with a surge if the battery was low......WW

First where does the single red wire go (not the one in the pig tale )?

Here is what i have done today rebuilt alt from new source, new pigtail, new battery. Start car same problem 11.8 at fast ilde on three different gauges all reading same ,once warm it goes to 11.4.
Will go and see what readings i get at the above mentioned places.

Last edited by BOTY79; May 4, 2012 at 11:59 AM.

May 4, 2012 | 12:14 PM

#22

Phat98

Burning Brakes

Joined: Nov 2010

Posts: 855

Likes: 36

From: Crystal Springs MS

Quote:

Originally Posted by caddyboy84

I hope that an electrical whiz chimes in here, because I really don't want to believe ya got all those bad alts. Man, if thats the case, I would NEVER go to that store again

I went through SIX heater cores in ONE month on the ex's '97 Bonneville. They discovered the Mexicans were using low-grade solder and the antifreeze would eat through them in a couple of days. BTW, these were AC/Delco cores installed by the Pontiac dealership.

So yeah, I believe you could get a row of bad alternators no matter where you got them...chit happens, ya know?

May 4, 2012 | 02:52 PM

#23

BOTY79

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Joined: Jun 2003

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From: Central Ill

Thanks to 94z07fx3 the single red wire was corrode at the terminal and i did not see it till i cut the boot off as it had hardened up. If it wasn't raining i would be out for a ride

May 4, 2012 | 03:27 PM

#24

caddyboy84

Burning Brakes

Joined: Nov 2011

Posts: 841

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Quote:

Originally Posted by BOTY79

Thanks to 94z07fx3 the single red wire was corrode at the terminal and i did not see it till i cut the boot off as it had hardened up. If it wasn't raining i would be out for a ride

So you're saying after all this, it was the power wire on the back of the alt?

I don't have that boot, I have a plastic cover that "snaps" over the lug that you have to remove to expose the wire when you take it off. I would think you'd have to pull that boot back to un-do the nut and you would've seen that. Oh well, it's hard not being there to see for ourselves.

May 4, 2012 | 06:09 PM

#25

WW7

Le Mans Master

Joined: Aug 2007

Posts: 8,735

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From: WV

Quote:

Originally Posted by caddyboy84

So you're saying after all this, it was the power wire on the back of the alt?

Well, at least he can stop putting on alternators now....

..WW

May 4, 2012 | 06:12 PM

#26

94z07fx3

Race Director

Joined: Dec 2006

Posts: 10,383

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Quote:

Originally Posted by BOTY79

Thanks to 94z07fx3 the single red wire was corrode at the terminal and i did not see it till i cut the boot off as it had hardened up. If it wasn't raining i would be out for a ride