Quote:
Originally Posted by TheRealSy90
So shouldn't you be able to cold start the car with your foot on the brake? Without this vacuum line shenanigans.
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no, its just a one time thing. the vacuum only leaks when you STEP DOWN on the brake. Once the pedal stops moving there is no more leak. The point was simply that these leaks exist, even if you are not aware of them. Its part of the big picture of where air goes on an engine, lots of people don't realize the brake mechanism is a source for unmetered air. Try pumping the brake and watch the wideband go lean.