Posted by Chriscase [76.221.176.204] on Wednesday, June 16, 2010 at 15:23:38 :
In Reply to: brake issue posted by JCB in Ct [71.234.107.181] on Wednesday, June 16, 2010 at 14:28:51 :
The pedal will go down further when the engine is running. The reserve vacuum inside the booster will work for a couple brake activations.
So basically, what you have is a 'low pedal'. Could be the shoes need adjustment. Or air in the system.
Or possibly the push rod in the booster is short, too much free play between booster and master cylinder.
What kind of vehicle?