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Electronic Brake Boost

752 Views 6 Replies 4 Participants Last post by  M.Maner
On my 68, I have an electronic brake assist. I know that its running because i can hear the hum that it puts on when the car is on. But whenever I step on the pedal the assist isn't there... any one have this issue? Or any ideas thanks.
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Check and see how much vacuum it is pulling. Also make sure it is pulling air from the booster, not pushing air into it.
Should be similar to this.

They create vacuum that your engine is missing. I got basically the same thing from a mid 80s cavalier wagon.
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