sounds like the classic 'bad ground' to me
>
>
> > I know its not "normal" to ask this here but I've gotten a lot of advice > on
> > my blazer here so I'm going to ask this.
> > My wife has a 99 sephia with an odd problem. When the headlights are on > the
> > taillights come on as normal, but when the brake is pressed the outer
> > drivers side taillight
> > goes out.
Does the brake light work on that side?
Also the drivers side licence plate light is out but its not
the
> > bulb.
Have you replaced it anyways to make sure?
it seems connected to that brake light problem. The last thing is
> the drivers side turn signal
Front or rear?
works fine with the headlights off but when
> they are on you cant see it blink. It does actually blink, if you look
> > closely you can see the second filament blinking but its way too dim to > see
> > unless you are staring at it from a foot away.
Sounds like the bulb may be in backwards (if it's the old style cyllindrical base instead of wedge base)
I think these problems are
> all connected and one fix will take care of everything. Any ideas? all > the
> > problems are the drivers side.
> >
> > Thanks.
> >
> >
>
>