Latest post of the previous page:okay ready here is my rookie diagnosis:
Today I went purchased a new check valve intalled. And immediately it failed. I took a peek at it and there is oil in the vacuum line and now in the check valve allowing air flow both directions.
Here is my theory. A few months ago I noticed when I depressed the brake pedal it made a wierd noise. But they work. I am thinking I must be crazy it must of always done that. I went back and forth and told myself you should check that out soon. I don't think its a normal noise.
Fast forward a few months later and the car as called me to attention.
I think what happened is the master cylinder was going bad, which inturn leaked into the brake booster, which then caused the booster to fail, that allowed oil to get into the vacuum line which caused the check valve to fail, which then caused the vacuum leak because Arcata German Motors put a check valve in that had a port to the side of it. I am assuming it was for emissions but I am not sure.
But it was sucking in air with a lot of pressure.
I then install new check valve and no leak but no brakes either.
The peddle is hard to depress,
So I just wanted to run this by you all to see if I should check out something else first or if yes the booster and Master Cylinder need replacing.
I found them on Wolfburg West.
locally no body has these parts.
Is it possible to rebuild the brake booster?
And why is it called a servo on some sites?