98 Cadillac Deville

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  #1  
Old 02-26-04, 09:14 AM
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98 Cadillac Deville

A 1998 Cadillac Deville in which we get heat and air from front windshield defrost and floor but not out of dash vents. What could be the problem? Any suggestions?

Thanks in advance.

Luca
 
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  #2  
Old 02-26-04, 11:01 AM
carguyinva's Avatar
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make sure all of the dash vents are open...i've seen people close tham

...i've seen people close them and wonder why the air doesn't come out when they switch to ac...make sure you have good strong vacuum at the programmer (behind the glove box) and that the vacuum motor is capable of working, in other words, make the system work by hand or with a vacuum pump or whatever...just prove it's not a vacuum actuatoproblem...if all those things check out, it's probably a bad programmer...the service manual should have a trouble chart for "no air from dash vents"
 
  #3  
Old 02-26-04, 11:23 AM
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thank -you for your reply carguyinva, I will take your advise.

Thanks again for your time.

Luca
 
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