Alternator Anomaly - Problem Solved

Stu Rasmussen

New member
Jan 29, 2019
132
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Thanks Bruce - having that document cleared everything up.

Turns out the 2-wire connector with battery on one pin and dashboard
indicator on the other was backwards.

That's the way the coach was when I received it and having your provided
schematic and thereby knowing which terminal was #1 and #2 it was a
quick fix to reverse the connector.

Strangely enough, this connector can be inserted into the alternator
either correctly or 180 degrees out - it slips in nicely either way.

Not quite idiot proof. At least not for this idiot.

Methinks that alternator PDF should be added to the Flash Drive. Worth
its weight in platinum!

Thanks!

> Stu,
> Have you metered the 2 pins to see which pin is wired to the battery Sense wire and to be sure the Sense wire is going to the correct alternator pin?
>

> Here is an excellent Delco service manual on our alternators:
> http://www.gmcmhphotos.com/photos/data/6522/Delco_Alternator.pdf
>
 
That ORIGINAL connector was polarity conscious. But these coaches have ALL
been altered from their original state, some everywhere you look, some not
so much.
Just about the time we think we have our coaches idiot proofed, along
comes a better class of idiots to disprove that theory. The FACTORY wiring
diagrams are most often correct. Especially Ken Henderson sons large print
versions. Double check EVERYTHING.
Jim Hupy
Salem, Oregon

On Thu, Jan 2, 2020, 1:40 PM Stu Rasmussen (97381.com) via Gmclist <

>
> Thanks Bruce - having that document cleared everything up.
>
> Turns out the 2-wire connector with battery on one pin and dashboard
> indicator on the other was backwards.
>
> That's the way the coach was when I received it and having your provided
> schematic and thereby knowing which terminal was #1 and #2 it was a
> quick fix to reverse the connector.
>
> Strangely enough, this connector can be inserted into the alternator
> either correctly or 180 degrees out - it slips in nicely either way.
>
> Not quite idiot proof. At least not for this idiot.
>
> Methinks that alternator PDF should be added to the Flash Drive. Worth
> its weight in platinum!
>
> Thanks!
>

> > Stu,
> > Have you metered the 2 pins to see which pin is wired to the battery
> Sense wire and to be sure the Sense wire is going to the correct alternator
> pin?
> >
>
> > Here is an excellent Delco service manual on our alternators:
> > http://www.gmcmhphotos.com/photos/data/6522/Delco_Alternator.pdf
> >
>
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>
 
That plastic moulding use to be available from Auto Zone and Rock Auto in case you want to change it.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Napa part Number
https://www.napaonline.com/en/p/ECHVRC148?searchCategory=c11.s2&searchIndex=Universal

On Fri, Jan 3, 2020 at 1:17 AM Ken Burton via Gmclist <

> That plastic moulding use to be available from Auto Zone and Rock Auto in
> case you want to change it.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class