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Electrical Help Needed [message #121967] Fri, 15 April 2011 22:14 Go to next message
LEdmcconnell is currently offline  LEdmcconnell   United States
Messages: 12
Registered: November 2004
Location: Bridgeton, MO
Karma: 0
Junior Member
I recently replaced a bad booster switch with a continous duty solenoid. After I reconnected the wiring, the engine was able to start right up, but only after I switched to "Boost". A little later I tried to restart it, but there was no power in the cockpit, either with the switch on "Boost or "Normal". There was no power to the house wiring unless the shore power was hooked up. Both the house & the engine batteries checked more than 12 volts. There was good continuity between both the batteries and the engine. (The house battery is grounded to the frame & the engine battery, to the engine block.)
Can anyone advise me where to check next?


Luther McConnell
'76 Birchaven
Bridgeton, MO
Re: Electrical Help Needed [message #122031 is a reply to message #121967] Sat, 16 April 2011 12:54 Go to previous messageGo to next message
PettyVTX is currently offline  PettyVTX   United States
Messages: 363
Registered: April 2011
Location: Winder Ga.
Karma: 1
Senior Member
No expert but it sounds like you wired the starting battery cable to the house side of the solenoid.
not to sure about the electrical systems in my unit yet but from just glancing at the schematic that may be your trouble
Ted


Ex Avion now looking for a 23' Jeep Wrangler Towd
Re: [GMCnet] Electrical Help Needed [message #122058 is a reply to message #121967] Sat, 16 April 2011 17:44 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
here is a picture that shows the connections,
yours should look like this

http://gmcmotorhome.info/batt.htm#diode

gene


On Fri, Apr 15, 2011 at 8:14 PM, LEdmcconnell <LEdmcconnell@aol.com> wrote:

>
>
> I recently replaced a bad booster switch with a continous duty solenoid.
> After I reconnected the wiring, the engine was able to start right up, but
> only after I switched to "Boost". A little later I tried to restart it, but
> there was no power in the cockpit, either with the switch on "Boost or
> "Normal". There was no power to the house wiring unless the shore power was
> hooked up. Both the house & the engine batteries checked more than 12 volts.
> There was good continuity between both the batteries and the engine. (The
> house battery is grounded to the frame & the engine battery, to the engine
> block.)
> Can anyone advise me where to check next?
> --
> Luther McConnell
> '77 Birchaven
> Bridgeton, MO
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Electrical Help Needed [message #122059 is a reply to message #122058] Sat, 16 April 2011 17:45 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
with the isolator connections
gene



On Sat, Apr 16, 2011 at 3:44 PM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:

> here is a picture that shows the connections,
> yours should look like this
>
> http://gmcmotorhome.info/batt.htm#diode
>
> gene
>
>
>
> On Fri, Apr 15, 2011 at 8:14 PM, LEdmcconnell <LEdmcconnell@aol.com>wrote:
>
>>
>>
>> I recently replaced a bad booster switch with a continous duty solenoid.
>> After I reconnected the wiring, the engine was able to start right up, but
>> only after I switched to "Boost". A little later I tried to restart it, but
>> there was no power in the cockpit, either with the switch on "Boost or
>> "Normal". There was no power to the house wiring unless the shore power was
>> hooked up. Both the house & the engine batteries checked more than 12 volts.
>> There was good continuity between both the batteries and the engine. (The
>> house battery is grounded to the frame & the engine battery, to the engine
>> block.)
>> Can anyone advise me where to check next?
>> --
>> Luther McConnell
>> '77 Birchaven
>> Bridgeton, MO
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Electrical Help Needed [message #122088 is a reply to message #122059] Sun, 17 April 2011 05:14 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
please let me know what you find.

if the engine battery is connected:
+ to the starter
_ to the starter

The starter should always run without the boost switch
you might have to run a ground from the engine to the frame.( the engine is
the mother of all grounds)

gene


On Sat, Apr 16, 2011 at 3:45 PM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:

> with the isolator connections
> gene
>
>
>
>
> On Sat, Apr 16, 2011 at 3:44 PM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
>
>> here is a picture that shows the connections,
>> yours should look like this
>>
>> http://gmcmotorhome.info/batt.htm#diode
>>
>> gene
>>
>>
>>
>> On Fri, Apr 15, 2011 at 8:14 PM, LEdmcconnell <LEdmcconnell@aol.com>wrote:
>>
>>>
>>>
>>> I recently replaced a bad booster switch with a continous duty solenoid.
>>> After I reconnected the wiring, the engine was able to start right up, but
>>> only after I switched to "Boost". A little later I tried to restart it, but
>>> there was no power in the cockpit, either with the switch on "Boost or
>>> "Normal". There was no power to the house wiring unless the shore power was
>>> hooked up. Both the house & the engine batteries checked more than 12 volts.
>>> There was good continuity between both the batteries and the engine. (The
>>> house battery is grounded to the frame & the engine battery, to the engine
>>> block.)
>>> Can anyone advise me where to check next?
>>> --
>>> Luther McConnell
>>> '77 Birchaven
>>> Bridgeton, MO
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>>
>>
>>
>>
>> --
>> Gene Fisher -- 74-23,77PB/ore/ca
>> “Give a man a fish; you have fed him for today --- give him a URL and
>> -------
>> http://gmcmotorhome.info/
>> Alternator Protection Cable
>> http://gmcmotorhome.info/APC.html
>>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Electrical Help Needed [message #122150 is a reply to message #122088] Sun, 17 April 2011 17:44 Go to previous message
cbwoodsr is currently offline  cbwoodsr   United States
Messages: 1063
Registered: February 2004
Karma: 0
Senior Member
I,ve called it a mother a couple of times, OhNan too...

CBWood
77 Kingslay
MWC OK
ONLINE PARTS PROGRAM
www.GMCMHParts.com

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