I watched an episode of "Muscle Car" a week or 2 ago and he put a vacuum pump on a brake booster. He showed that you should be able to get a vacuum reading. It won't pump up quickly like a canister, but after at most 20 pumps, you should get it to hold some vacuum. well mine holds no vacuum no matter how many time I pump it. Looks like I have a bad booster. That looks reasonably easy to change, but how much do you guys think this has been throwing off my A/F and vehicle performance?
It shut down because you created a huge vacuum leak with that hose opened. You wouldn't be able to stop the car if the booster was that bad. Maybe its kinda worn out but its not shot if the brakes worked.
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