1998 Dodge Ram A/C

Tiny
FOOTMEISTER1
  • 1998 DODGE RAM
  • 130,000 MILES

When you turn the ac knob on, the ac works but you cannot change the air flow from the defrost position to make the air comes out the vents. The knob will turn but the air flow is not redirected.
what needs to be checked and if it is a vaccum problem how would you know/

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Tuesday, June 25th, 2013 AT 9:48 AM

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Tiny
DOCFIXIT
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  • 18,987 POSTS

Vacuum does control Mode either switch is faulty or Vacuum source from engine intake was lost. Black plastic line from intake through bulkhead to switch

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Tuesday, June 25th, 2013 AT 10:03 AM

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