Why does the 4KQ need a separate vacuum pump?

Nate Stuart newt at newtsplace.com
Mon Sep 23 17:42:38 EDT 2002


Safety measure, I guess, allows for on throttle power assisted braking.
Other than that it's a festive noise maker at the audi gatherings...

> Just wondering why the cam-driven pump is needed for the brake
> booster....It's the first one I have seen on a car..

-Nate
'89 90tq
www.newtsplace.com/90tq





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