Last post on Nov 18, 2013 at 7:10 PM
You are in the Chevrolet Suburban & Tahoe
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Chevrolet Suburban, Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV
#120 of 372 Replaced Aspirator - problem solved
Jul 27, 2009 (7:25 am)
This thread saved me some time and money so I thought I post my experiences in case it may help someone else.
Vehicle: 2002 Chevy Tahoe with climate control
Problem: AC ran full blast constantly (when set to auto)
Replacing the aspirator as described in this thread fixed the problem.
I bought the part( pn: 25903301 ) online from GM Parts Direct for $24, shipping and handling was another $13. I did find the part online at another vendor for the same price but $5 bucks less in shipping. But I placed the order with GM Parts Direct since they had done the legwork regarding the part number. They were prompt and efficient; delivery took 5 days.
Installation took me about 30 minutes after doing some reading on how to "loosen" the b-pillar. It turns out you just give it a tug straight out. It snaps on and off. Finding some online notes on how to replace the headliner gave me the confidence to just pull on it. It was tight quarters to get at the aspirator to replace it but doable.
The boss tells me her AC works great now so I'm very pleased with how this repair went.
P.S. Our Tahoe has been very good to us and we hope to get several more good years from it. It has 97,000 miles on it and the only significant repairs have been a new fuel pump and some substantial rear brake work. (knock on wood)
Aug 01, 2009 (2:47 pm)
Anybody remember how much PAG 150 oil to put in the compressor when you change out the AC parts. Thanks in advance for the help
Aug 01, 2009 (2:50 pm)
By the way the vehicle is a 1994 chevy suburban with rear AC, thanks.
#123 of 372 Rear A/C Problem
Aug 04, 2009 (1:48 pm)
Dash A/C Blows cold. Rear Blower works, air flow is correct, and rear evap is cool but not cold. Anybody got any ideas what the problem could be?
#124 of 372 A/C IN FRONT OF SUBURBAN WORKS SPORADICALLY
Aug 10, 2009 (7:56 am)
I have a 2002 Suburban and the A/C in the rear works great but the A/C in the front only works occassionally. Sometimes it automatically comes on when you start the vehicle other times it will cut off while driving, other times it may click off and then comes right back on. I initially noticed that when set on auto and a 70 it would not stop blowing once it got to that temp, it would keep blowing full blast. My main concern at this time is the front controller shutting on and off. Any suggestions or solutions from others having these problems.
#125 of 372 Re: AC / Heat Noises 2002 Chevy Tahoe [waltherchic]
Aug 10, 2009 (8:53 pm)
Your compressor is going out. The noise is the idler pully pounding on the metal hydralic line for the transmission cooler. You will need to change your compressor!
Aug 24, 2009 (5:25 pm)
I recently purchased an 04 suburban with 124500 miles. It has auto climate control with front and rear A/C. It works great sometimes, every once in awhile it'll be blowing cold air, front and rear, all of a sudden it is as if the driver vents (driver's side, the one to the left of the steering wheel and the center one) will blow hot. As if the heater was turned on, and the passenger side and rear vents still blow ice cold. Any suggestions as to what may be causing this? ANY HELP would be greatly appreciated!
#127 of 372 Re: A/C issues [hornet12]
Aug 24, 2009 (5:33 pm)
have freon level checked
#128 of 372 Re: A/C issues [kiawah]
Aug 24, 2009 (5:48 pm)
It seems like it would be thermostat related, the passenger side and rear blow ice cold, and the driver HOT. It has separate controls for the driver and passenger. It's really irritating. When this happens, I can turn it off, and start it right back up and it will all blow cold. It all happens sporadically, not all the time.
#129 of 372 Re: A/C issues [hornet12]
Aug 24, 2009 (5:56 pm)
That's what you might think, but there's been a number of posts in the last month on a couple of these forums (on different mfg's), where left side blows hot and right side cold, and the fix ends up being topping off the freon. Problem solved.