[ARCHIVED THREAD] - Problem with AC / heat system

Posted: 7/26/2012 3:34:48 AM EDT

I have a 96 suburban that has been having a problem with the volume of air coming out of the vents. The fan appears to be fine. I can hear the fan running as it should on any speed setting. Any ideas on where I should begin to look for the problem ?

Posted: 7/26/2012 3:51:52 AM EDT

[#1]

probably the blend doors. see if it is moving air out of the floor and defrost too.
if so, look for cracked vacuum lines.

Posted: 7/26/2012 3:03:37 PM EDT

[#2]

If I remember right, the blend door on those, is vacuum operated. If it is, check for broken, or missing hoses, at the source (manifold?) and the door itself.

Posted: 7/26/2012 7:13:29 PM EDT

[#3]

Might also check the air inlet for debris.

Did the 96 have a cabin air filter?

Posted: 7/27/2012 5:30:00 AM EDT

[#4]

Quoted:
Might also check the air inlet for debris.

Did the 96 have a cabin air filter?

I'm wondering if it had a cabin air filter as well.

Posted: 7/27/2012 5:49:04 AM EDT

[#5]

Quoted:
Might also check the air inlet for debris.

Did the 96 have a cabin air filter?

I don't think they did back then. They still used the same basic system that they used in the 80's in that dash. Super basic, and flat!

[ARCHIVED THREAD] - Problem with AC / heat system

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[ARCHIVED THREAD] - Problem with AC / heat system

[ARCHIVED THREAD] - Problem with AC / heat system