I have a 2000 Cherokee 4.0 and I pulled the dash and replaced the heater core and evap... I have everything buttoned up, but now I have a vacuum leak. I narrowed it down to the red vacuum line but I think its the actuator that's bad not the line its self due to the idle jumping . Do I have to pull the dash again (Shoot me!) ? I know the actuator ball sits on the left side of the box but I would hate to have to pull it again. Any suggestions?