Hiya guys, I have a 99 S-10 blazer with a 4.3 Vortec and I noticed the other day that the vacuum lines leading to the airpump and the hvac lines were dry rotted and they crumbled before I was able to get a snapshot of their locations. I looked on the yahoo and google even this sites search for vacuum line routing for the secondary air and HVAC lines in the engine compartment. All I found was the PCV routing, anyways I think I figured out most of it except for this little guy (dipicted in attacted picture) and if anyone know were that line goes I would be most greatful. Thank you! =)

 

that line there goes to the drivers side , there is a line that connects to a vacuum ball that is mounted on the inside of the drivers fender.......its right near your brake booster.......look hard you'll see it, the line comes out to a tee, one line goes to intake vacuum , and the others line goes to actuator pictured..............