1991 Cadillac DeVille Electrical Problem

I have a 1991 Cadillac DeVille, bought it recently from a gentleman who has
passed so Ican't ask him. Anyway - the car was running great then the
passanger door controls stopped working and when I press on the breaks my
radio shuts off - I release the breaks and it comes back on - interior lights
on my dash board flash when I apply the breaks - starts out really bright
then the more I hit the breaks they dim or flash bright then dim. Help -
could this all be related to one switch or bad wiring or maybe a fuse??????

That usually means you have lost a body ground. The main ground is a
mesh cable from a bolt likely on the bell housing up to the body,
usually on the passenger side of GM's. There is another small one from
the battery negative to the fender that has likely melted down also.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Akroyd wrote:
>
> I have a 1991 Cadillac DeVille, bought it recently from a gentleman who has
> passed so Ican't ask him. Anyway - the car was running great then the
> passanger door controls stopped working and when I press on the breaks my
> radio shuts off - I release the breaks and it comes back on - interior lights
> on my dash board flash when I apply the breaks - starts out really bright
> then the more I hit the breaks they dim or flash bright then dim. Help -
> could this all be related to one switch or bad wiring or maybe a fuse??????

Good info Mike, just to add have the alternator checked for output under
load also.
"Mike Romain" > wrote in message
...
> That usually means you have lost a body ground. The main ground is a
> mesh cable from a bolt likely on the bell housing up to the body,
> usually on the passenger side of GM's. There is another small one from
> the battery negative to the fender that has likely melted down also.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Akroyd wrote:
>>
>> I have a 1991 Cadillac DeVille, bought it recently from a gentleman who
>> has
>> passed so Ican't ask him. Anyway - the car was running great then the
>> passanger door controls stopped working and when I press on the breaks my
>> radio shuts off - I release the breaks and it comes back on - interior
>> lights
>> on my dash board flash when I apply the breaks - starts out really bright
>> then the more I hit the breaks they dim or flash bright then dim. Help -
>> could this all be related to one switch or bad wiring or maybe a
>> fuse??????



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Thank you so much - I will check it and hopefully that is it......Debbie

Mike Romain wrote:
>That usually means you have lost a body ground. The main ground is a
>mesh cable from a bolt likely on the bell housing up to the body,
>usually on the passenger side of GM's. There is another small one from
>the battery negative to the fender that has likely melted down also.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
>Canadian Off Road Trips Photos: Non members can still view!
>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>(More Off Road album links at bottom of the view page)
>
>> I have a 1991 Cadillac DeVille, bought it recently from a gentleman who has
>> passed so Ican't ask him. Anyway - the car was running great then the
>[quoted text clipped - 3 lines]
>> then the more I hit the breaks they dim or flash bright then dim. Help -
>> could this all be related to one switch or bad wiring or maybe a fuse??????

--
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Shep - I will check that too - Thanks - Debbie

Shep wrote:
>Good info Mike, just to add have the alternator checked for output under
>load also.
>> That usually means you have lost a body ground. The main ground is a
>> mesh cable from a bolt likely on the bell housing up to the body,
>[quoted text clipped - 18 lines]
>>> could this all be related to one switch or bad wiring or maybe a
>>> fuse??????

--
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