1997 Chevy Lumina Heat vents slow to change/don't change at

1997 CHEVROLET LUMINA
122,000 MILES • 6 CYL • FWD • AUTOMATIC
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WSWJONES08
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  • 38 POSTS
Subject says it all. When you go to change the vents (lets say from window to floor), the heat is slow to come out from the floor or it won't change over at all. What is the name of the part that controls this? The actuator? And is it a fairly easy fix if there isn't a vacuum leak?

Thanks for any help!
Nov 23, 2009 at 10:13 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Chances are the actuator control is fine and the problem is a cracked (plastic) vacuum hose under the dash or where the supply hose goes throgh the firewall to the engine.

Start the engine and listen for a hissing sound. If you're lucky, you'll be able to hear the leak.

Let me know what you find or if you have other questions.

Joe
Dec 5, 2009 at 1:00 PM
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