Quote Originally Posted by jvnj View Post
One way of checking if it leaks through the hydrovac is to pull off the vacuum hose which connects the hydrovac to the intake manifold. If there are presence of oil or fluid, then it is precisely leaking. I would suggest you to replace the entire assembly instead of the repair kit only, as the diaphram in the hydrovac has already been soaked in fluid, which eventually will fail afterwards.
When you say entire assembly, this includes the brake master cylinder?