"Brake" Warning Light under Acceleration

[Stephen Bigelow]

*Both* fluid levels are up to correct levels, right?

Low pressure (as told by the sensor in the servo) is usually evidenced under
braking.


> Hello Listers:
>
> My '89 200Q has been flashing the "Brake" warning light under moderate to
> hard acceleration, such as entering traffic or passing. It doesn't seem
> related to boost level (occurs anywhere from 0.7 - 1.3 bar on the factory
> gauge) as at times where there is elevated boost, such as going up hill
> without accelerating, the light doesn't come on. Is this a sign my
> hydraulic pump is failing (my bomb is already pretty weak, so I imagine
> most boost is coming entirely from the pump). Note, ABS works, power
> steering seems fine, but I also do have a leaky rack. Any ideas?
>
> TIA!
>
> LL - NY