I already have the vacuum flask, and it's installed.
The vac pump sucks the air out of this white aluminum bottle, and that sucks on the power brake booster.
I have a vac gauge on the dashboard to show how much vacuum I have. The bottle holds enough vacuum for about 10 pumps of the brake pedal.
The problem is that, right now, the vac pump keeps running, needed or not, as long as my foot is on the brake. That works great for quick stops, and start and stop driving, but bad at long lights, when the pump just keeps running and running.
Once I get this new vac switch in, the power brake system will pump up automatically and run only as needed!
