Question about 2007 Chevrolet TrailBlazer SS
Vacuum hose for air vents is not connected. These black hoses should be accessable by feeling under the dashboard. The hose just slides onto the air vent intake. Hope this helped.
Posted on May 03, 2010
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Posted on Jan 02, 2017
common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.
Posted on Feb 23, 2009
Some thing you could look at would be this. The control is usually fed by a vacuum line or small hose thats is connected to your intake manifold.
With a cold engine,look for a skinny vacuum hose that runs from the intake toward the fire wall . It should be going inside the cab and connecting to the A/C vent control.Some times the hose becomes disconnected or splits or cracks due to heat under the hood.
Thats usually the trouble.
I hope this helps you.
Posted on Oct 06, 2009
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