| Phantom Electrical Problem [message #193016] |
Sat, 15 December 2012 10:23  |
Bobxxx
Messages: 4
Registered: December 2012
Location: Morgan's Point, Texas
Karma: 0
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Junior Member |
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I have a 1977 Royale that runs good, except for a mystery electrical problem. The symptoms are that when I switch on A/C or Electro-level, the generator light comes on and neither system works. I had a similar problem a few months ago and I traced the battery ground to the engine, cleaned the connection and the systems started working. This time that solution did not work. Anybody know this phantom?
Bobs77Royale
Morgans Point, Texas
monkeebus@yahoo.com
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| Re: [GMCnet] Phantom Electrical Problem [message #193042 is a reply to message #193016] |
Sat, 15 December 2012 21:06  |
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Could the two circuits be tied in together somehow? Perhaps the nichrome
wire caused it under the dash.
Bob, does your Royale have the Alternator Protection Cable installed?
http://gmcmotorhome.info/APC.html
bdub
-----Original Message-----
From: On Behalf Of Bob Monk
Sent: Saturday, December 15, 2012 10:23 AM
Subject: [GMCnet] Phantom Electrical Problem
I have a 1977 Royale that runs good, except for a mystery electrical
problem. The symptoms are that when I switch on A/C or Electro-level, the
generator light comes on and neither system works. I had a similar problem
a few months ago and I traced the battery ground to the engine, cleaned the
connection and the systems started working. This time that solution did not
work. Anybody know this phantom?
--
Bobs77Royale
Morgans Point, Texas
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bdub
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| Re: Phantom Electrical Problem [message #193061 is a reply to message #193016] |
Sun, 16 December 2012 09:11 |
Bobxxx
Messages: 4
Registered: December 2012
Location: Morgan's Point, Texas
Karma: 0
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Junior Member |
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It does have the APC installed. Don't know what the under dash cable is
Bobs77Royale
Morgans Point, Texas
monkeebus@yahoo.com
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| Re: [GMCnet] Phantom Electrical Problem [message #193138 is a reply to message #193064] |
Mon, 17 December 2012 09:02 |
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Bob
From what Gene said, the fact that the alt light comes on when you switch on
either of these circuits says that they must be diverting voltage from the
alternator to somewhere else before getting to the battery. Since they are
two separate circuits, the fact that either cause the same symptoms tells me
that they are somehow tied together.
<http://www.google.com/cse?cx=012365226858947048796%3A6srkhxlo30u&ie=UTF-8&q
=nichrome>
To double check, find the circuit protection for both circuits and determine
if there is continuity between the two.
What about the electrolevel fuse? Is it dead as well? Is yours electolevel
I or II?
<http://www.bdub.net/wirediagrams/>
<http://www.bdub.net/wirediagrams/77-78-transmode-chassis-electrolevel-I.pdf
>
I think the schematic shows power delivered through a 12ga Brown wire off
the Accessory terminal of the ignition switch. A separate 12ga Brown powers
the air compressor from the same terminal. Windshield washer is on that
same terminal. Does that work? If not, it looks like it might be the BAT-2
terminal of your ignition switch.
To remotely power the dead circuit would probably give more information.
Watch for smoke and have a fire extinguisher handy.
Keep this online as most here are much better at this than I.
hth
bdub ... only find a nut if I keep at it long enough
-----Original Message-----
From: Bob & Pat Monk [mailto:monkeebus@yahoo.com]
Sent: Sunday, December 16, 2012 11:34 PM
I checked the fuse box and all fuses appeared to be fine, but then I ran a
test meter on each of the fuse terminals. The fuse terminal marked
Heater/AC and the Accessory terminal below it showed no voltage. All other
terminals tested normal. Not sure if this means I have a fuse box problem,
or that some grounding problem is affecting the fuse box. If it is the fuse
box, I'm thinking of jumping from a good terminal (30 amp) to the bad
terminal, but I don't know enough about it to be sure. What would you
advise?
Thanks for your help
Bob
-----Original Message-----
From: On Behalf Of mr.erfisher@gmail.com
Sent: Sunday, December 16, 2012 9:47 AM
That is A help
No false alt light
Says bat volts higher than alt
Ck grounds power
N
Voltages
Gene on road
-----Original Message-----
From: On Behalf Of Bob Monk
Sent: Sunday, December 16, 2012 9:11 AM
It does have the APC installed. Don't know what the under dash cable is
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Bobs77Royale
-----Original Message-----
From: On Behalf Of Billy Massey
Sent: Saturday, December 15, 2012 9:06 PM
Could the two circuits be tied in together somehow? Perhaps the nichrome
wire caused it under the dash.
Bob, does your Royale have the Alternator Protection Cable installed?
http://gmcmotorhome.info/APC.html
bdub
----Original Message-----
From: On Behalf Of Bob Monk
Sent: Saturday, December 15, 2012 10:23 AM
Subject: [GMCnet] Phantom Electrical Problem
I have a 1977 Royale that runs good, except for a mystery electrical
problem. The symptoms are that when I switch on A/C or Electro-level, the
generator light comes on and neither system works. I had a similar problem
a few months ago and I traced the battery ground to the engine, cleaned the
connection and the systems started working. This time that solution did not
work. Anybody know this phantom?
--
Bobs77Royale
Morgans Point, Texas
_______________________________________________
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Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
bdub
bdub.net
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