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Chevrolet Tahoe Climate Control AC Problems

28 messages,  Last post on Mar 14, 2009 at 7:00 AM

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What is this discussion about? Chevrolet Tahoe, Heating / Cooling, Truck

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#19 of 28 Re: 2008 TAHOE LT A/C PROBLEMS [whiteelephant] by rockman59 Nov 13, 2007 (11:05 am)
Replying to: whiteelephant (Nov 12, 2007 8:13 pm) whiteelephant said: I'm very frustrated, and by Texas Lemon Laws these people have 3 attempts to fix the same problem. This is now their 3rd attempt. ____________________________________________________________________ Make sure you document your three attempts to get the vehicle fixed. Keep all your service repair orders...and make notations about what they said concerning GMs comments that "this is a common problem but we don't know how to fix it". Make note of the the names of the dealer/GM people involved. To tell you that this is a common problem and they can't fix it is absurd. I would start working the dealer right now for a swap into a brand new '08. Let the dealer worry about the fix. If they won't do that then you should would start the Lemon Law proceedings immediately. Replies to this message: thomas40 (Aug 13, 2008 8:22 pm)
#20 of 28 2004 Tahoe with A/C Control Issues by okctahoe Feb 29, 2008 (5:54 pm)
First my speedometer stuck and went out in 2005. About the same time my stereo stopped working and also my a/c would blow out the defrost when it was positioned on face.   I took it to the dealer and they replaced the dash panel where the speed controls are but the other two issues had sub-sided at the time. When they messed up again and I took it back...again they were unable to find anything.   Now that the car is out of warranty the control is completly stuck on defrost....no matter what you do that is the only place it will blow out. My husband got a geniune AC Delco replacement, brand new and installed it and it is still not working....Anyone know what to do? I am about fed up with GM! Replies to this message: jl222 (Oct 09, 2008 6:56 pm)
#21 of 28 Re: 04 Tahoe Climate Control [alois] by wbernhardt Feb 29, 2008 (6:13 pm)
Replying to: alois (Oct 28, 2007 11:10 am) They found a bad ground between the sensor in ceiling and climate control. They fixed the ground and it works. I could bet you have the same problem.   Good luck
#22 of 28 Re: 2008 TAHOE LT A/C PROBLEMS [rockman59] by thomas40 Aug 13, 2008 (8:22 pm)
Replying to: rockman59 (Nov 13, 2007 11:05 am) I know exactly what your talking about. I bought our 2008 Tahoe in May. I have had it into the dealer six different times, due to the AC clutch making a clattering sound, air flow problems and a short within the rear AC. On the second visit the dealer found the short in the rear Ac and fried the main AC control. Know I am still having problems with the air flow. I did check the lemon laws here in AZ and filed a complaint with the Better Business Bural I was wondering if you ever resolved your issue and how!
#23 of 28 Re: 2008 TAHOE LT A/C PROBLEMS [whiteelephant] by thomas40 Aug 13, 2008 (8:25 pm)
Replying to: whiteelephant (Nov 12, 2007 8:13 pm) I am having very similar problems with my 2008 Tahoe. I was woundering if you were able to resolve anthing?
#24 of 28 Re: 2004 Tahoe with A/C Control Issues [okctahoe] by jl222 Oct 09, 2008 (6:56 pm)
Replying to: okctahoe (Feb 29, 2008 5:54 pm) i have an 05 tahoe with the same problem, blowing from the defrost. I was going to buy a new replace the controller but wanted to see if you resolved your issue another way? Winter is coming and my heat does not work either!
#25 of 28 Freon/coolant? by beckya1 Mar 10, 2009 (10:40 pm)
Hi - I need to know if I should add Freon (or the alternative) to my A/C system on my 1999 Tahoe. The past 2 seasons the A/C has become progressively 'less' cool. I turned it on the other day when it was only about 65 degrees out and it didn't cool at all. It wasn't blowing hot air - it was just blowing.   So - should I add coolant to the A/C system and if so - what and how?   Thanks! Replies to this message: acking (Mar 13, 2009 1:38 pm)
#26 of 28 Re: 01 A/C noise [markanag1] by acking Mar 13, 2009 (1:28 pm)
Replying to: markanag1 (Sep 23, 2007 4:23 pm) With the engine off, turn your compressor clutch by hand and make sure that you don't have any tight spots. The problem could exist from a compressor that might be ready to sieze. Also have the air conditioning tested to ensure that the charge levels are good, overcharging a system could lead you on a wild goose chase of strange noises.
#27 of 28 Re: Freon/coolant? [beckya1] by acking Mar 13, 2009 (1:38 pm)
Replying to: beckya1 (Mar 10, 2009 10:40 pm) Only use virgin R-134a refrigerant. Drop in refrigerants aren't such as dura-cool aren't really safe for A/C systems. Always refer to manufactures spec!
#28 of 28 Re: 01 A/C noise [markanag1] by arrie Mar 14, 2009 (7:00 am)
Replying to: markanag1 (Sep 23, 2007 4:23 pm) What age is your car?   Well, regardless of the age you might have lack of oil lubricant in your A/C compressor,   If the belt "flaps" it probably does it at frequency of pistons moving in the compressor. This would mean that your compressor causes more than normal torque peaks as it turns around.   Unless you have severely over filled you A/C system the first thing I would do is to get a small bottle of A/C lubricant and fill it in and see if it helps.   If you are a little bit hands-ON person go get a A/C kit with refrigerant, oil fill and pressure gauge. These are not expensive and can be found in any car parts store.   First measure pressure by the instructions with the gauge, i.e. run engine with A/C ON for a few minutes and connect gauge on the low side service port (it should not even fit on high side where you NEVER want to connect). Low side service port is in part of the line that gets cold.   If pressure is not too high add oil lubricant again in the low side service port and see if it helps.   If the pressure is too low add refrigerant but you say it works fine, i.e. refrigerant fill should be good and low fill should not cause too high torque on the compressor anyway.   Over filling the system can cause this issue, i.e. you would have A/C refrigerant entering the compressor in liquid form, which does not compress and would cause very high torque pulse. This can cause severe damage to compressor too.   Arrie

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