Cruise control sticking.

[lbhskier37]

When I bought my car, the cruise didn't work (92 Regal custom), also the HVAC was screwy and wouldnt let me change from the floor ducts to the vents. I tracked it down as being a broken vacuum line. On my vacuum diagram it shows a line going from by the throttle body to the hvac/cruise system. In real life though there is a tee in this line and one end of it went somewhere under my airbox. I tried to find where it went, but it was just a broken end. I ended up just plugging the end with some glue and that fixed my cruise/HVAC. The cruise seems to work fine now, but once in a while it seems to stick. Like after reaching the top of a hill, the accelerator won't let off. I will speed up like 5-6 mph before it finally lets off. Is this maybe because of my just plugging that broken end? Did the broken end really go somewhere before, like maybe a bleed off oriface?

[Robby1870]

The line that goes under the airbox goes the vacuum ball thing in the driver's front fender. It's basically in front of the front wheel. It's a black plastic ball.