Question about 2006 Chevrolet Trailblazer

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Air diverter only diverts blown air to feet or defroster.

The air blower on my 2006 Chevrolet TrailBlazer will only divert blown air to the feet or to the defogger/defroster. It will continue to blow air on the other settings but the source will remain at the feet, or if the selector is moved to the appropriate setting, the defogger/defroster. It appears that all fan speeds are working properly.

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Its a hvac mode accuator it controls where the air blows i have the same problem with my envoy waiting on the part in the mail its up under the dash. the part is vin specific so check for the part number with a dealer they told me $103 but i found one online for $57

Posted on Feb 24, 2010


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Air condition

Have you checked the diverter doors under the dash??
It sounds like a vaccum hose may have fallen off your vent controller.
I have had similar problems and found that the air WAS moving, but it was all going up through the defrost vents at the windshield.
A quick check of the vac. lines showed that one under the glove box was pulled off.
with the engine running, try setting the air settings to all the options ( vent/floor/defrost..etc..)
See it you can feel or hear the diverters moving under the dash..

Jul 02, 2008 | 1994 Chevrolet Lumina APV

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