| Re: [GMCnet] need help, dead on the road [message #186799] |
Tue, 09 October 2012 17:28 |
Steve Jess
Messages: 169
Registered: April 2012
Karma: 0
|
Senior Member |
|
|
Hi Larry,
As one new owner to another, let me point out one area worth checking. It was the cause of a nasty intermittent short circuit that left me stranded a couple of times.
About a foot or so above the brake pedal (I'm not at my coach now so this is an approximate location), a thick bundle of wires comes through a grommet in the firewall. This bundle takes a sharp turn toward the passenger side, and passes very close to a bracket holding the steering column. On my coach, this bracket has rough edges that rubbed off the insulation on several of the wires in the bundle. The accessory bus is one of the wires that might get its insulation abraded. The bracket is a chassis ground, so when the insulation rubs away, the result is a total short with blown fuses, fusible links, or circuit breakers.
The wire bundle is flexible and can bounce as your coach goes over bumps, so the short can disappear as quickly as it appeared, leaving you tearing your hair out trying to find it.
My fix was to bend a piece of cardboard around the steering column bracket as insulation. The pressure from the wire bundle holds it in place.
I don't know if that's how GMC built it, or it was the handiwork of some previous owner, so your mileage may vary.
Steve Jess - Boise, ID
1977 GMC Palm Beach "The DreamLiner"The 10,000 pound antique Home Theater with plumbing
> Message: 2
> Date: Sun, 07 Oct 2012 21:39:46 -0500
> From: Larry Millen <larry@norockchips.com>
> Subject: Re: [GMCnet] need help, dead on the road
> To: gmclist@temp.gmcnet.org
> Message-ID: <2d916.50723cf2@gmc.mybirdfeeder.net>
> Content-Type: text/plain; charset="ISO-8859-15"
>
>
>
> Thanks, while I was waiting for the tow truck i disconnected the connectors at the base of the steering column and no change. not looking forward to tracing an electrical problem. anybody an expert in the Detroit metro area?
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
