Weak Air Pressure Out of Vents

[rhamer88]

Good day all. Searched around for a bit and couldn't really find an answer to my questions. So here's to hoping someone can help me out! :happy160:

So I purchased my 1997 Tahoe LT in October, and with summer rapidly approaching, I decided it was time to get my air conditioner in working order. A quick evac and recharge of the freon and a new low pressure switch and she's blowing cold now.

But I can't help but feel like the air pressure blowing out of the vents is super weak, even on the highest speed. I pulled my glovebox out and took apart the fan and blower and cleaned a lot of crap out of there, but didn't really seem to do much for me. Like I said, the air coming out of the vents is cold, it's just not coming out very strong.

Any insight in to the situation would be greatly appreciated. Thank you!

 

[rockenthebowtie]

Does the fan speed sound right meaning do you actually hear the fan speed increase with the settings... also might want to check if it has a restricted cabin filter

 

[rhamer88]

Yes, I can hear the fan changing speeds, and on the highest level it definitely sounds like it's on high.

It's my understanding that this year (1997) wasn't equipped with a CAF. Cruising around the net, it looks like the general consensus is that GM didn't start putting them in the Tahoe's until 2000. But someone please correct me if I'm wrong.

 

[rockenthebowtie]

Ill have to check on cabin filter another question is how are your mode setting working do those seem to be switching normal you may have mode door distribution problem

 

[lesterl]

Cabin air filter is N/A, your AC Evap core is probably covered with junk and crud.... May have to disassemble some and clean it off, vac it off, wash it off...... they make a cleaner for this project also....