Air Vents

[FootinSD]

Great forum guys! Fairly new, and have been reading since switching over from TF.

Having an issue with my air vents. I usually run defrost and floor for 8-9 months of the year. Went to turn on the air through the vents on the dash for the first time in the past year and it wouldnt "switch" over from defrost. A/C would come out of the floor and defrost just fine, just not out of the vents in the dash.

Any ideas how to fix this?

[ravingmadman]

Typically air vents are controlled by rubber vacuum lines, but I'm not sure with your rig. Check the vacuum lines under the dash, at the back of the heater control, and coming from the engine compartment. My $0.02.

["350Vortec"]

Probably a door actuator, I had to replace mine because it wouldnt switch from dash to defrost. Works fine after replacement. Easy to. Look under your steering column. there is a little black box tucked up in the right top corner.

[FootinSD]

Perfect. Thanks for the responses. Hopefully it wont be a big deal.