2000 Chevy Lumina Airflow selector will not change

Tiny
CRW_2000
  • MEMBER
  • 2000 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 142,000 MILES
My A/C only blows out of the defrost and floor vents no matter which setting I use; it will not switch directions. This started out as an intermittent problem, but has gotten progressively worse.

I have read that this is commonly caused by a bad vacuum hose. Could someone tell me where this particular vacuum hose would be located on my car? It is a 3.1L v6 by the way.

Thanks.
Thursday, June 25th, 2009 AT 5:19 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
The source vacuum usually comes through the firewall near the passenger side. It is a small black plastic line and should attach to the intake manifold. You may need a bright flashlight to look around for it.
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Friday, June 26th, 2009 AT 7:32 AM

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