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Suburban no vent co...
 
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Suburban no vent control

  

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Hi Scotty I have been watching you for a while now. I have a 2005 chevy suburban 5.3 liter engine 120000 miles  my ac only comes out of my defroster vent. Can you give me any ideas to fix it ?   John


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The air diverter is vacuum controlled. Most likely the vacuum line coming from the engine intake is broken. Common problems that's cheap and easy to fix.


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