Very little air comes out of my heater/AC vents

2001 GMC SIERRA
75,000 MILES
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JGREINBOLD
  • MEMBER
  • 1 POST
Very little air comes out of my heater/AC vents, even on the highest speed, in my 2001 Sierra 2500HD truck I just bought. It doesn't seem to make a difference if its on "outside" air or "recirc" air. Any idea what might be wrong?
Aug 31, 2012 at 12:08 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Check the cabin filter first. If it is badly clogged, air flow would be restricted.
Aug 31, 2012 at 12:28 PM
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