Battery Problem

[homebase1]

Electrical Experts
Today I ignited my ' 77 403 Kingsley. One battery down back
beside the Onan and the other up front under the passenger feet.
Now my problem....
The rear battery seems to be powering everything. With the Front
battery Disconnected, the engine would still turn over and although
draggy; started! I'm fairly certain this ain't normal !!
When the front battery is connected and the rear disconnected,
there is a drain that kills the front overnight? The front battery was
new last summer, the rear two summers ago.
What information do you need to know to suggest where start
looking ?
I panic with electrics, and can not think clearly. Can someone bail
me out ??
Thanks

MikeB

 

[roger black]

Mike,
Main thing to know about electrics is never sit in a chair that plugs into
the wall. The rest is easy.
Roger

 

[gary miller]

Mike,
Sounds like your battery boost switch must be in the "boost" position (or
the solenoid is frozen in that position. Your coach battery should not be
connected to the engine unless the boost is "on".
Gary
'7 Kingsley
North Bend, Oregon Coast

> Electrical Experts
> Today I ignited my ' 77 403 Kingsley. One battery down back
> beside the Onan and the other up front under the passenger feet.
> Now my problem....
> The rear battery seems to be powering everything. With the Front
> battery Disconnected, the engine would still turn over and although
> draggy; started! I'm fairly certain this ain't normal !!
> When the front battery is connected and the rear disconnected,
> there is a drain that kills the front overnight? The front battery was
> new last summer, the rear two summers ago.
> What information do you need to know to suggest where start
> looking ?
> I panic with electrics, and can not think clearly. Can someone bail
> me out ??
> Thanks
>
> MikeB

 

[jim bounds1]

Emory,
You are right, the coach should not start. Disconnect your battery
isolator (the blue finned thing above the boost solenoid) at one end and
see if the coach will start. If the isolator is shorted between the top &
bottom terminals, it will do what you are describing.

I can think of no other points (other than the boost solenoid) where the 2
curcuits crossover.

Hope this helps.

Jim Bounds
- --------------

>

>
>battery Disconnected, the engine would still turn over and although
>draggy; started! I'm fairly certain this ain't normal !!
>When the front battery is connected and the rear disconnected,
>there is a drain that kills the front overnight >>
>
>Unless you have the boost switch on, the rear battery should not be
connected
>to the engine battery. I'd suggest that you take the front battery
positive
>cable off the battery and put on a battery charger overnight. Put your
boost
>switch off. Use a test light to see if there is any power at the
>disconnected battery cable. It there is, the solenoid may be frozen in an
on
>position. If no voltage there, then reconnect the cable to the engine
>battery and see if it starts the engine. If it again goes down overnight I
>would guess that it is either a bad battery or an isolator. Take the
battery
>somewhere to have it load tested.
>
>I have had batteries go bad in less that a year. In fact, I bought a 72
>month warranty Diehard last year and it went bad in about 10 months.
>
>Emery Stora
>77 Kingsley
>Santa Fe, NM
>
>
Jim Bounds/Co-op Motor Works Orlando www.gmccoop.com