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Old 08-18-2014, 09:54 PM   #7
PQ
Booooosted.
 
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Drives: 2010 Supercharged SS
Join Date: Apr 2008
Location: Mobile, AL
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Quote:
Originally Posted by motorhead View Post
It would be easy enough to check the vacuum. Usually if it's vacuum though you will get one good pump out of it before you loose power assist.
Actually it did get one good pump and hold but used it to hold the car while I put it in reverse. Not sure if it was a strong one really. The thing that bothered me the most is that it did seem to lose hold but it didn't drop far at all before it "bottomed out". There was a hard shelf so to speak well before the floor.

Quote:
Originally Posted by NC-V View Post

Is there a noticeable difference in brake pedal effort with the car off and car running? Also I would take a measurement of manifold vacuum just to make sure you are making enough vacuum to properly operate the booster. If you never opened the brake hydraulic system, my bet is a booster or vacuum issue, especially if the pedal is firm and doesn't drop to the floor.
There was no noticeable difference really.

I wish I could go out and check some of these but this car is loud. hahaha And it's late.
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