troublesome issue

[Kneale Brownson]

Might be easier to suggest diagnosis steps if you specified car model and 
year, Kerry.

At 06:32 PM 04/25/2001 -0400, Kerry Benton wrote:

>Hello all,
>Recently my car has had the following problem...
>
>i get the warning light with the red emergency triangle and the word "BRAKE"
>across it.  According to the manual this is either a) low brake fluid b) low
>hydraulic fluid or c) a problem with the brake system in general.
>
>I've checked a and b and both levels are ok...  additionally, the symptoms i
>seem to recall are usually associated with those things (increased stopping
>distance, pedal travel, etc.) are not present and the brakes feel as they
>always have.  As for option c, while possible, i expect that this would also
>have shown up as a different feeling brake, but not necessarily, i know.
>Plus, the entire brake system (master cyl, calipers, rotors, hoses, etc.)
>was replaced about 3 months ago, so that isn't it (at least i *really* hope
>not).
>
>Now for the really confusing part (for me, and i admit to not being a guru
>at all when it comes to cars).  The light only comes on when i'm going 70
>mph (or, i assume, faster, but i don't really drive much faster than 70 very
>often).  For the past few days i've been going 65 max and it's not come on.
>This morning as a test i pushed it up to 70ish and the light come on almost
>right away.  I then kept it slower for the rest of the 25 minutes of the
>drive and didn't see it again.
>
>On the one hand this seems pretty serious, but I haven't noticed any further
>issues, so I thought before I potentially blow a bunch of money on a
>mechanic, I'd ask some other knowledgable folks...
>
>If you can help, please email me directly at krb1 at email.com.
>
>I appreciate it.
>
>cheers,
>-kerry
>