Electrical gremlins
 

Hi folks
You guys did such a good job with my last dilemma I've another. My lights
flash on and off occasionally, my horn works when it wants and it hasn't
wanted in weeks on my 94 wrangler. replaced relays, fuses; tracked wires all
over. I remember having the same headlight problem with a 93 I had awhile
back that I never figured it out. I've deduced from all of this that this
era must have bad wiring. Anybody else have these problems?
--
Big country
2003 GMC Sierra 1500 4X4
1994 Jeep Wrangler 2.5L
2004 HD FXSTDI
1957 Willys CJ5

First place is to look for a bad ground. Start with the big ground cable
between the negative battery terminal and the block. Crank the starter
and see if either end gets hot, sure sign it is toast. Next check all
the various smaller ground straps, especially the one(s) from the enigne
to the body.

Big Country wrote:
> Hi folks
> You guys did such a good job with my last dilemma I've another. My lights
> flash on and off occasionally, my horn works when it wants and it hasn't
> wanted in weeks on my 94 wrangler. replaced relays, fuses; tracked wires all
> over. I remember having the same headlight problem with a 93 I had awhile
> back that I never figured it out. I've deduced from all of this that this
> era must have bad wiring. Anybody else have these problems?

Horn and headlights have a common ground connected by a wire mesh cable
from the rear of the head to the firewall. When this goes bad, the body
can steal grounds, but sometimes it can't get enough so things
intermittently don't work.

Or two separate issues. The headlights have a breaker in the switch
that wears out especially if someone put halogen or high powered bulbs
in without adding a relay. This causes the light to flick on and off.
Usually the light switch itself gets physically hot when this happens,
so a quick fee with your hand can spot it.

And horns sometimes just have attitudes....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Big Country wrote:
>
> Hi folks
> You guys did such a good job with my last dilemma I've another. My lights
> flash on and off occasionally, my horn works when it wants and it hasn't
> wanted in weeks on my 94 wrangler. replaced relays, fuses; tracked wires all
> over. I remember having the same headlight problem with a 93 I had awhile
> back that I never figured it out. I've deduced from all of this that this
> era must have bad wiring. Anybody else have these problems?
> --
> Big country
> 2003 GMC Sierra 1500 4X4
> 1994 Jeep Wrangler 2.5L
> 2004 HD FXSTDI
> 1957 Willys CJ5

Thanks I sure appreciate the help

--
Big country
2003 GMC Sierra 1500 4X4
1994 Jeep Wrangler 2.5L
2004 HD FXSTDI
1957 Willys CJ5
"Mike Romain" > wrote in message
...
> Horn and headlights have a common ground connected by a wire mesh cable
> from the rear of the head to the firewall. When this goes bad, the body
> can steal grounds, but sometimes it can't get enough so things
> intermittently don't work.
>
> Or two separate issues. The headlights have a breaker in the switch
> that wears out especially if someone put halogen or high powered bulbs
> in without adding a relay. This causes the light to flick on and off.
> Usually the light switch itself gets physically hot when this happens,
> so a quick fee with your hand can spot it.
>
> And horns sometimes just have attitudes....
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Big Country wrote:
>>
>> Hi folks
>> You guys did such a good job with my last dilemma I've another. My
>> lights
>> flash on and off occasionally, my horn works when it wants and it hasn't
>> wanted in weeks on my 94 wrangler. replaced relays, fuses; tracked wires
>> all
>> over. I remember having the same headlight problem with a 93 I had
>> awhile
>> back that I never figured it out. I've deduced from all of this that
>> this
>> era must have bad wiring. Anybody else have these problems?
>> --
>> Big country
>> 2003 GMC Sierra 1500 4X4
>> 1994 Jeep Wrangler 2.5L
>> 2004 HD FXSTDI
>> 1957 Willys CJ5