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
Feb 23, 2010 (1:01 am)
Hope you can help. 2002 Chevrolet Suburban LT 1500 4x4. For a couple of weeks now the A/C hasn't worked, on Friday I had it re-gassed, there was only 2lbs in the system when there should have been 3lbs. Tried to get the A/C to cut in but no joy. The engineer said he had no idea why. I've bridge the terminals at the pressure switch and checked all the fuses and checked the relays (all OK) and can't get the compressor clutch to "Click in". Then somebody said, "Maybe it's because over the last month the temperature here in the UK has not been higher than 4 degrees, and having "Computer Climate Control” the A/C won’t kick in because the ambient temperature is too cold”, they also suggested maybe I need to re-set something after re- charging”.
#145 of 372 Re: fan works on all settings but 5 [sulli031]
Feb 28, 2010 (1:17 pm)
I have had a similar issue with a '99 Tahoe 3-4 times, but what I get is only setting 4 works, and even that is intermittent. So I just leave it on that setting.
It's the pot/rhe/relay behind the dash, where (in my case) pin1 keeps getting corroded. I dremeled it the first time, but after that, I just replaced the part. $30 at GM or $18 at O'Reilly. (BWD part number S15002). I haven't addressed the corrosion issue.
#146 of 372 Lower ac belt noise
Mar 09, 2010 (6:50 pm)
I have a 2000 suburban. I noticed a belt type "rattle" after my shop replaced the lower ac belt and tensioner pulley a couple of years ago. When I accelerate with the AC on, the belt seems to slip or wobble. After acceleration, its fine. I've gone through several belts, as well as several pulleys in the past 2 years. When I initially replace the belt and/or pulley, no noise, but after a week or so, it's back. I"m using an after market tensioner. The GM part lasted many years with no problem, so I'm wondering if I should replace with the actual GM tensionser and see if that solves the problem. Or, do I have other AC issues? Any thoughts?
#147 of 372 Re: Lower ac belt noise [woodrats]
Mar 09, 2010 (7:43 pm)
I had the same issue and this problem is caused by liquid slugging in the compressor. What happens is that the compressor struggles to pump the liquid freon back up to the top, (due to the fact that GM decided to put the compressor so low in the bay), and this causes the compressor to shake violently, and rattle the tensioner to the point that it bangs the stop tabs (the source of the sound) I found an online GM Tech who gave this answer:
Some customers may comment about an underhood rattle noise heard on acceleration or a sudden loss of A/C system performance.
This condition may be caused by liquid slugging of the A/C compressor. This condition may cause an internal failure in the A/C compressor. The serpentine belt
tensioner and serpentine belt may also be damaged.
Technicians are to check the A/C system performance and compressor operation using the following repair procedure:
1.) Open the hood and inspect the A/C compressor for damage and to see if the compressor is seized. Verify that the serpentine belt is not damaged or missing. If the A/C compressor is seized, proceed to step 5.
2.) Perform the A/C System Performance test. Refer to the Heating,Ventilation and Air Conditioning (HVAC) section of SI. Correct any performance concerns or refrigerant leaks that are found.
3.) Inspect the vehicle for other possible sources of A/C compressor noise or performance concerns. Refer to Corporate Bulletin Number 01-01-38-013 for more information.
4.) After all other possible sources of A/C compressor noise or performance concerns have been eliminated, only then should the A/C compressor be replaced.
5.) Remove the A/C compressor. Refer to the A/C Compressor Replacement procedure in the HVAC section of SI.
6.) Inspect the transmission cooler lines for damage due to contact from the serpentine belt. Replace the transmission cooler lines if necessary.
7.) Install an inline A/C system filter. Refer to Corporate Bulletin Number 01-01-38-006C for more information about A/C system flushing and filter installation procedures. An A/C system flush is not to be done unless prior authorization is given by the GM Area Service Manager (in Canada, the District Service Manager).
8.) Install an A/C Suction Screen. Refer to Corporate Bulletin Number 01-01-39-003A for more information about A/C suction screen repair recommendations and procedures.
9.) Install a new A/C compressor. Refer to the Compressor Replacement procedure in the HVAC section of SI.
10.) Install a new orifice tube for the front A/C system. Refer to the Expansion (Orifice) Tube Replacement procedure in SI.
* If the vehicle is a 2003 model yearChevroletExpressor GMC Savana van, the vehicle may require a new accumulator. Refer to Corporate Bulletin Number 03-01-38-016 for more information. This bulletin refers to an updated design accumulator that may improve the performance of the A/C system.
Install a new serpentine belt tensioner and serpentine belt if they have been damaged due to A/C system slugging or an A/C compressor seizure. The serpentine belt tensioner may have broken stop tabs and/or a missing front cap.
Verify proper operation of the A/C system.
Refer to the GMSPO parts catalog for the latest service replacement compressor part numbers.
89016656 (*A/C Delco Part# 15-10413)
Universal In-Line A/C Filter
Parts are currently available from GMSPO.
*This filter may also be purchased through your local A/C Delco distributor.
For vehicles repaired under warranty, use:
Compressor Assembly - Replace
Use published labor operation time
#148 of 372 Re: A/C Problems only when wet [jweast99]
Apr 03, 2010 (4:11 pm)
Did you ever find a solution to this problem? My HVAC controls display, radio display, and DIC display are all out, but the radio and HVAC still work. This is all after sitting out in the rain overnight. My 2004 burb is usually garaged....
#149 of 372 A/C COMPRESSOR
Apr 08, 2010 (11:23 am)
My compressor just stopped working in my 03 Suburban. Before it stopped it always make a loud noise under the engine. So I assume it is the compressor.
#150 of 372 low pressure cutout switch
Apr 13, 2010 (5:11 pm)
I have a 97 tahoe with a low pressure cutout switch on the accumulator that is leaking refrigerant. All the parts stores only list a compressor mounted switches. Is this the same switch? doesn't look the same! Does this switch have another name?
#151 of 372 2004 tahoe air wont change location
Apr 17, 2010 (5:40 pm)
I cant change air flow from floor to dash vent or defrost. I hear about air vent door actuators but I dont know where its located and how to get to it. Are there any diagrams to help me with this. thanks
Apr 28, 2010 (6:22 am)
I have a 2005 Tahoe and it is 45degress outside and I'm having a hot flash. How do I get some cool air? My temp only goes tas low as 60!
#153 of 372 Re: Too HOT!!! [pamelad]
Apr 28, 2010 (1:31 pm)
I am from GM Customer Service. Although I cannot diagnose your vehicle over the internet, your A/C possibly may need to be recharged. If you feel that your temperature is not as cold as it usually is, then I would recommend taking it to the dealership to have it looked at. Thank you,
Mariah GM Customer Service