Question about 2004 Chevrolet TrailBlazer
When you turn on the air the main vents do not blow anything out. Its the 3 main vents that dont work, otherwise all other events blow air, hot and cold.
Is an electrical problem or could it be just a technical problem?
I noticed it didnt work after I had the car cleaned and detailed.
They are often operated by vacuum... look under the dash for any stray vacuum hoses...
Posted on Sep 11, 2008
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Posted on Jan 02, 2017
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