electrical connections behind front bumper - DS

[Bernard Littau]

Sounds like you are looking at the radiator fan resistor -- they are 
usually a blue color if you rub the dirt off a bit.

Your low and medium radiator fan speed leads route through the 
resistor.  If your system is on A/C, the low speed should be on unless 
the system demands med or hi. (The fan is never off in A/C mode).  If 
the fan does not work in low or med, this is the area to look.

Where are you measuring the 12.5 V?

Best,

Bernard Littau
Woodinville, WA
'88 5ktq

millertyme wrote:

> 
> 
>slowly the fumigation process is reaching an end for my 87 5KT.
>last week when I replaced my timing belt, I noticed that there are 3
>studs and heavy gage wire connections behind the bumper cover on the
>drivers side.
>they are quite heavily corroded, so I left them alone for the time
>being.  my question is, what do they feed, and could this be a cause of
>my inability to keep the system volts above 12.5 when the headlights are
>on along with the blower?
>to answer a question before it is asked,. the alternator is a new 90 amp
>GM (sorry if i insult anyone, but the $$ was a key factor at the time). 
>I searched the site, but could not find anything about this, so any
>insight from the electrical gurus would be greatly appreciated
>thanks again
>brian
> 
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