proportional valve: how important to have working one?

[Konstantin Bogach]

Did anybody feel a difference in praking after replacing bad proportional
valve?

Konstantin Bogach.

Kneale Brownson wrote:

> Proportioning valve is supposed to adjust rear braking for load, I
> believe.  Don't know what that adjustment would be, though.  If your rotors
> are remaining rust-free, your rear brakes are working, probably at least
> for minimum loading of the car.
>
> At 05:31 PM 02/26/2002 -0500, Konstantin Bogach wrote:
>
> >Hi listers.
> >
> >Proportional valves on both my cars do not work.  They are frozen.  How
> >significantly it affects braking?  Can it freeze in such position that
> >reduce overall braking power?
> >
> >Thank you.
> >
> >Konstantin Bogach
> >200tq '89
> >200tqa '89