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1990 Chevy Blazer no air coming out vent



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Posted at Fri Aug 08, 2008 11:47 am
By dalscwb1, New to the forum
Give Feedback | Votes: 0
   
Air Conditioning problem
1990 Chevy Blazer 6 cyl Four Wheel Drive Automatic 140000 miles
----------------------------------------------------------------
the air comes out when on floor and defrost just not the vents
 
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Posted at Fri Aug 08, 2008 11:47 am
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Posted at Fri Aug 08, 2008 12:13 pm
By Docfixit, Tech level 7
Reputation: 98Reputation: 98Reputation: 98Reputation: 98Reputation: 98 (98) Give Feedback | Votes: 4
   
May have lost vaccum to select switch and it is in default mode. Look for any vac line broken from engine. If none pull out control head verify vac to switch.
 
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