[s-cars] Brake Light Problem Back Again

[brian hoeft]

definitely could be dirty in there, i flushed mine twice to make it all
clean green. that didnt solve the problem, and neither did replacing my
accumulator..well, i t worked for a day, then went back to its old
"thrumming" ways. the brake servo test yielded not bad results(see SJM
site), so i now plan on swapping the abs control module(where all the lines
go to) since i have one and its way easier that swapping the servo... i have
a used servo too, but will pray for success otherwise.
 other than those components, i dont know what could fail and result in such
problems... oh wait, yes i do,, your abs sensors at each wheel. gently
remove and clean them.. it could be that simple, but wasnt in my case. if it
were a line you should have spotted a leak. best bet would be to check the
servo, it takes 5 minutes and one wrench. sorry, no link, see the SJM site.
 good luck, -brian


 On 9/21/05, Douglas Fifield <douglas.fifield at gmail.com> wrote:
>
> All,
>
> If there is one thing I hate more than a car problem, it is an
> intermittent
> car problem.
>
> To recap, a while back I posted that my brake light was staying on longer
> and longer. The bomb test passed, the brake and power steering fluid was
> topped off. On one occasion, there was a "thrumming" vibration being
> transmitted through the brake pedal. Then - it went away - kind of.
>
> The brake light would still take a while to go off in the morning, but it
> was no longer staying on for 30 seconds or longer. Well, that began to
> change. The time it took for the light to go off began to creep up and
> finally, this afternoon, the light stayed on. I was driving home from the
> city and the light would not go off. Plus, the thrumming was back in the
> brake pedal. I stopped the car and lifted the hood with the engine running
> to look things over. The fluid levels looked fine and I saw no evidence of
> leaking.
>
> For the remainder of the drive home (about 20 minutes worth), the pedal
> thrummed and the light stayed lit. Upon leaving the freeway, I braked for
> the exit and about half way up the exit, the thrumming disappeared. About
> 30
> seconds after that, the light went out.
>
> So, what does it all mean? Any thoughts?
>
> --
> Douglas in MN
> 95.5 Audi S//6 Avant
> 73 BMW R60/5 mit Toaster Tank
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