Break problems
Thread Starter
3rd Gear
Joined: Feb 2016
Posts: 3
Likes: 0
Break problems
Changed the break booster out of my 1985 corvette put the new booster in and took it for a test drive. I found that when I pushed the break petal it had vacuum help for the first inch and a half then it gets hard and turns to manual breaks.
Wondering if it's a vacuum leak somewhere else or do I need to adjust the plunger in the break boost or something else
Any ideas or suggestions would be much appreciated!
Wondering if it's a vacuum leak somewhere else or do I need to adjust the plunger in the break boost or something else
Any ideas or suggestions would be much appreciated!
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
Changed the break booster out of my 1985 corvette put the new booster in and took it for a test drive. I found that when I pushed the break petal it had vacuum help for the first inch and a half then it gets hard and turns to manual breaks.
Wondering if it's a vacuum leak somewhere else or do I need to adjust the plunger in the break boost or something else
Any ideas or suggestions would be much appreciated!
Wondering if it's a vacuum leak somewhere else or do I need to adjust the plunger in the break boost or something else
Any ideas or suggestions would be much appreciated!
The first item I would check is to remove the hose for the brake booster and blow thru it. It needs to be real clear with no restrictions. Get a new hose if it is plugged up.
Monitor the engine vacuum at the booster. See if the vacuum remains the same as the pedal is depressed. A small vacuum leak from a small hose that might run the vents or cruise would probably not affect the operation of the booster or the brakes.
Last edited by pcolt94; Mar 14, 2016 at 12:56 PM.
