Originally Posted by 92olds88royale
i got the purge valve and the problem still exists fallowed the vaccum lines back to a junction box kinda thing infront of the throttle body the vaccum line for the brakes goes into it too now when i pull the vaccum off the purge the idle goes up for the car when i pull it off the brake booster the idle stays the same. any ideas why one would do it when the other wont when they are both coming from the same vaccum sorce?
I am having trouble understanding what you are doing with the vacuum lines, and it makes a big difference. Can you be more specific please?
It depends on what you are doing with the line coming from the vacuum source.
If you pull off a line that connects to a device and plug it with your finger so that the engine cannot suck air through the line you just removed, and the idle improves, that tells you that when that line is attached to the device, air is being sucked through the device or stuff attached to it.
If you pull off a line that connects to a device and do not plug it, so that the engine can suck air through the pipe, and the idle does not change, then the device is open to the atmosphere somewhere or has a leak.
What you would normally expect to happen is when you pull off a line and plug it with your finger, there should be no change. If you leave the end open, the idle should change.
Hope Lash can continue help as I will be gone tomorrow.