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Old Jul 28, 2005 | 03:41 PM
  #1  
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Default A/C Problems Continue

Fourth service visit to the dealer...on previous visits the thermal heat exchange valve was replaced, refrigerant pressure sensor was replaced, R134a was evacuated and recharged to 1.1lbs...and the problems with the A/C persist. System seems to function marginally better at ambient temps below 80 degrees. Once you get over 80 degrees, A/C blows cool for about a minute...than continuous warm air until you fiddle with the snowflake button. Pushing it on/off a couple of times will get the A/C to engage for a short burst, then it's back to warm air. My situation is well documented with GM. Now I have a new compressor on order. Dealer is clueless as to if this is a viable fix. My car sat out in the dealer lot (in the rain and the mud) for about 6 hours (clean car returned not dirty, but filthy).

Last word from the dealer...YOU CALL US in about 5-10 business days to find out if the compressor has arrived. These guys don't even have the courtesy to tell me that they'll call me as soon as the part arrives.

First class service Chevrolet!...An American Revolution!?
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Old Jul 28, 2005 | 08:33 PM
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Read your states lemon law. If applicable, send them a demand letter to repurchase the car or replace it. If GM gets enough of these, they'll fix the problems the first time. Virginia only requires three or more trips for the same major problem (AC is considered major) to invoke the lemon law. Or, at least, give us the option of taking the cars direct to BG for solutions to problems that the dealer obviously can't fix. Kind of hard to drive a car in 100 degree heat without air conditioning and in traffic. Mine has stopped working at idle, resumes once accelerated but shuts off again when stopped. Real fun in a two hour backup on I-95 in 100 degree heat. When its right, it's SOOOO right but when it's wrong, it's a PIA.
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Old Jul 28, 2005 | 08:57 PM
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I was going to wait until I was certain it was fixed but here is the deal.

Last week I contacted the sales manager at Hare Chevrolet in Noblesville I,ndiana who sold me my car.

I told him about all the problems people were having with the A/C. He faxed me a bulleting that GM put out to all their technicians. In summary it said to drain out the refrigerant and put back 1.0 pounds. My fleet mechanic did just that and SO FAR SO GOOD!!!!

Its been hotter than hell here in AZ and its working great. I don't drive the car everyday but I have had the top on the last 2 times I drove it and it is working perfectly.

I can't swear its resolved but GM definitely knows about the problem and correctly sent out the bulletin to their techs.

Try it......please post or PM me. I want to know if it really works.
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Old Jul 28, 2005 | 09:01 PM
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My AC is freezing cold. I have to turn the temp to 67 instead of 60.
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Old Jul 28, 2005 | 09:15 PM
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Now how long has GM been building Chevy cars with A/C. What the heck GM, crank bolt pulley problems, A/C problems, dead battery problems, lower rear quarter panel not flush with the passenger door, squeaky brakes, to name a few, this car is not cheap, GM please, just make it right. And what's with that dealer in your area, some customer service I hope the ZO6 with free of these nagging problems
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Old Jul 29, 2005 | 01:49 PM
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Originally Posted by pasquale
I was going to wait until I was certain it was fixed but here is the deal.

Last week I contacted the sales manager at Hare Chevrolet in Noblesville I,ndiana who sold me my car.

I told him about all the problems people were having with the A/C. He faxed me a bulleting that GM put out to all their technicians. In summary it said to drain out the refrigerant and put back 1.0 pounds. My fleet mechanic did just that and SO FAR SO GOOD!!!!

Its been hotter than hell here in AZ and its working great. I don't drive the car everyday but I have had the top on the last 2 times I drove it and it is working perfectly.

I can't swear its resolved but GM definitely knows about the problem and correctly sent out the bulletin to their techs.

Try it......please post or PM me. I want to know if it really works.
Hey Pasquale...
Dealer tried the R134a reduction from 1.4 lbs. to 1.1 lbs as suggested in the GM bulletin. A/C is worse now. Asked my Service Tech if they have run into this problem with other Vettes...his answer was a firm NOOOOO!...what a strange problem this is, one of a kind, so unique. On my ride back to my office in their courtesy cargo van, the driver asked me what I was in for, when I told him he told me that I was the third Vette in the past week in with the problem.

My GM service rep (called GM direct) who is documenting the problem has no other knowledge of similar cases (how strange). And isn't it curious that no vendor here has any input or suggestions on the situation?

Sincerely, there really are some great vendors here...nobody's encountered this problem?
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Old Jul 29, 2005 | 02:41 PM
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Originally Posted by RevDice
Hey Pasquale...
Dealer tried the R134a reduction from 1.4 lbs. to 1.1 lbs as suggested in the GM bulletin. A/C is worse now.
I have had three vehicles do this. Oddly two were chevys(trucks) and a Lexus. 13 years ago I bought a 1992 SC400 and the next day drove to Vegas (lived in San Diego), the next morning sorta had air then NONE,,,took it to a dealer there and had no clue what to do,,, so back in San Diego I went to the dealer 3 or 4 times before going to another dealer to get the car fixed MY WAY. In all the vehicles the problem was the dealer was trying to add or subtract refrigerate. For some a few oz's make a huge differance. So the second dealer did it MY way which was to empty the whole system and refilled to spec. This was the fix.

When the Chevy trucks had the same problem I knew what to do and also learned there is a small filter in line to trap the shavings from the AC pump/compressor, both trucks were new. Both the filters were pretty dirty.

OMT, the dealers didn't like my idea so I Had to tell the dealer I would pay for the job if my idea didn't work, I didn't pay a dime.

Hope this helps
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Old Jul 29, 2005 | 02:54 PM
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Originally Posted by Gary C
I have had three vehicles do this. Oddly two were chevys(trucks) and a Lexus. 13 years ago I bought a 1992 SC400 and the next day drove to Vegas (lived in San Diego), the next morning sorta had air then NONE,,,took it to a dealer there and had no clue what to do,,, so back in San Diego I went to the dealer 3 or 4 times before going to another dealer to get the car fixed MY WAY. In all the vehicles the problem was the dealer was trying to add or subtract refrigerate. For some a few oz's make a huge differance. So the second dealer did it MY way which was to empty the whole system and refilled to spec. This was the fix.

When the Chevy trucks had the same problem I knew what to do and also learned there is a small filter in line to trap the shavings from the AC pump/compressor, both trucks were new. Both the filters were pretty dirty.

OMT, the dealers didn't like my idea so I Had to tell the dealer I would pay for the job if my idea didn't work, I didn't pay a dime.

Hope this helps
A few here had the refrigerant evacuated and reduced to 1.1 lbs. with no luck...then compressors were replaced with success. I had to finally start talking Lemon law arbitration to get the dealer to agree to change the compressor. The comment is always...you can't believe everything you read on the internet. I'm more confident about real fixes I've read here than anything they have had to offer.

Anyway, the new compressor arrived today. Car is in next Wednesday for the install. I'm keeping my fingers crossed...
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Old Jul 29, 2005 | 03:08 PM
  #9  
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Same exact fix for me.

Originally Posted by pasquale
I was going to wait until I was certain it was fixed but here is the deal.

Last week I contacted the sales manager at Hare Chevrolet in Noblesville I,ndiana who sold me my car.

I told him about all the problems people were having with the A/C. He faxed me a bulleting that GM put out to all their technicians. In summary it said to drain out the refrigerant and put back 1.0 pounds. My fleet mechanic did just that and SO FAR SO GOOD!!!!

Its been hotter than hell here in AZ and its working great. I don't drive the car everyday but I have had the top on the last 2 times I drove it and it is working perfectly.

I can't swear its resolved but GM definitely knows about the problem and correctly sent out the bulletin to their techs.

Try it......please post or PM me. I want to know if it really works.
Reply
Old Jul 29, 2005 | 05:36 PM
  #10  
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Originally Posted by RevDice
A few here had the refrigerant evacuated and reduced to 1.1 lbs. with no luck...then compressors were replaced with success. I had to finally start talking Lemon law arbitration to get the dealer to agree to change the compressor. The comment is always...you can't believe everything you read on the internet. I'm more confident about real fixes I've read here than anything they have had to offer.

Anyway, the new compressor arrived today. Car is in next Wednesday for the install. I'm keeping my fingers crossed...
Good luck. I've had the problem and it fixed itself.

I really think you are looking at a buyback situation if it isn't fixed with a new compressor. A new car without reliable A/C has to be dealt with by the manufacturer.

Hope it works.
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Old Jul 29, 2005 | 08:08 PM
  #11  
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Originally Posted by RevDice
Hey Pasquale...
Dealer tried the R134a reduction from 1.4 lbs. to 1.1 lbs as suggested in the GM bulletin. A/C is worse now. Asked my Service Tech if they have run into this problem with other Vettes...his answer was a firm NOOOOO!...what a strange problem this is, one of a kind, so unique. On my ride back to my office in their courtesy cargo van, the driver asked me what I was in for, when I told him he told me that I was the third Vette in the past week in with the problem.

My GM service rep (called GM direct) who is documenting the problem has no other knowledge of similar cases (how strange). And isn't it curious that no vendor here has any input or suggestions on the situation?

Sincerely, there really are some great vendors here...nobody's encountered this problem?
I received my bulleting from the General Sales Manager where I purchased my car. When I told him my problem, he immediately referrenced the bulletin. I don't understand why the people you are dealing with seem to think your problem is an isolated one.

Just to make sure..........your reply says the bulleting stated to put back 1.1 pounds. The bulletin I quoted from says 1.0. It seems like a small difference (.1 pounds) but that might make the difference. Our monsoons are supposed to be back this weekend. That should bring heat and humidity in our area. I will put the A/C to test and let you know. Thanks for your response.
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Old Jul 30, 2005 | 02:28 AM
  #12  
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Originally Posted by RevDice
A few here had the refrigerant evacuated and reduced to 1.1 lbs. with no luck...then compressors were replaced with success. I had to finally start talking Lemon law arbitration to get the dealer to agree to change the compressor. The comment is always...you can't believe everything you read on the internet. I'm more confident about real fixes I've read here than anything they have had to offer.

Anyway, the new compressor arrived today. Car is in next Wednesday for the install. I'm keeping my fingers crossed...
RevDice,
I'm one of the few that went through the exact same sequence you did, with the final fix being the new compressor. It's worked flawlessly ever since. Don't give up hope yet.
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Old Jul 30, 2005 | 11:54 AM
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Default Same problem here

I'm having the same problem as the posts here mention. My AC blows cold air and room air intermittently and never consistent enough to cool the car. My car is at the dealer now. It was over 100 degrees most of the week here in NC and now it's down around 80. I'm expecting them to come back and tell me there's nothing wrong with it because it's really not as noticable when the temp outside is 80 or less. Does anyone have any ability to post the service bulletin that has been mention in this thread? Is there a number to the service bulletin? Anything I can point my dealer too? Thanks!!!
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Old Jul 30, 2005 | 01:02 PM
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Originally Posted by RevDice
An American Revolution..?
AGAIN - EVERYBODY!! Please NAME THE DEALER when you have been misused.

We all want to know the good guys from the bad guys. I can never understand why anyone would want to keep it a secret when they've been screwed. Telling the world is a MUCH more effective response philosophy!

Further, the "bad guys" need to know of our solidarity and that vette owners don't keep misconduct a secret.

Big Jimm
So. Fla.
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Old Jul 30, 2005 | 01:36 PM
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I was experiencing the same problem here in Phoenix.

I took my C6 to Chandler Chevrolet and asked them to evacuate the refrigerant and refill with 1.1 lbs.

This corrected the problem once and for all!
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Old Jul 30, 2005 | 01:50 PM
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Personally I'd like to tell my stories with a bit of animinity. Afterall what if my dealer reads this forum. I don't have too many choices of dealerships to take my car to and I have to have something that keeps me on the advantage. If someone really needs to know the name of a dealership, why can't it be taken care of through mail???

I think naming names is more of a personal choice.

~ IHMO ON ~
Don't get me wrong, I really like the forum and the commerodery it stimulates, but I think stating that the solidarity here can change things is a real reach.
~ IMHO OFF ~

Originally Posted by Big Jimm
AGAIN - EVERYBODY!! Please NAME THE DEALER when you have been misused.

We all want to know the good guys from the bad guys. I can never understand why anyone would want to keep it a secret when they've been screwed. Telling the world is a MUCH more effective response philosophy!

Further, the "bad guys" need to know of our solidarity and that vette owners don't keep misconduct a secret.

Big Jimm
So. Fla.
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Old Jul 30, 2005 | 07:33 PM
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Originally Posted by Gary C
I have had three vehicles do this. Oddly two were chevys(trucks) and a Lexus. 13 years ago I bought a 1992 SC400 and the next day drove to Vegas (lived in San Diego), the next morning sorta had air then NONE,,,took it to a dealer there and had no clue what to do,,, so back in San Diego I went to the dealer 3 or 4 times before going to another dealer to get the car fixed MY WAY. In all the vehicles the problem was the dealer was trying to add or subtract refrigerate. For some a few oz's make a huge differance. So the second dealer did it MY way which was to empty the whole system and refilled to spec. This was the fix.

When the Chevy trucks had the same problem I knew what to do and also learned there is a small filter in line to trap the shavings from the AC pump/compressor, both trucks were new. Both the filters were pretty dirty.

OMT, the dealers didn't like my idea so I Had to tell the dealer I would pay for the job if my idea didn't work, I didn't pay a dime.

Hope this helps
Emptying the entire system and refilling back to 1.0 is a MUST. I stood and wathced my mehcanic do this and so far so good. The auto climate control works perfectly!! Tried agian today in hot humid weather here in AZ and the A/C was up to task!
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To A/C Problems Continue

Old Jul 31, 2005 | 08:30 PM
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Originally Posted by austinC6
RevDice,
I'm one of the few that went through the exact same sequence you did, with the final fix being the new compressor. It's worked flawlessly ever since. Don't give up hope yet.
Hey Austin...I remember your situation. My gut tells me it's the compressor, just like yours. My dealer's just been a little slower to react. Probably because GM wants to try everything short of replacing alot of compressors out there.

My dealer has been professional the whole time. I'm more disgusted with GM not really supporting the dealer in diagnosing the problem. We're a small contingent here, with a good percentage of A/C failures. I'd be shocked if GM engineers didn't know what the "real" fix is.

Ya' think those compressors were supplied by the lowest cost vendor out there?
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Old Jul 31, 2005 | 08:53 PM
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Originally Posted by Big Jimm
AGAIN - EVERYBODY!! Please NAME THE DEALER when you have been misused.

We all want to know the good guys from the bad guys. I can never understand why anyone would want to keep it a secret when they've been screwed. Telling the world is a MUCH more effective response philosophy!

Further, the "bad guys" need to know of our solidarity and that vette owners don't keep misconduct a secret.

Big Jimm
So. Fla.


Absolutely! This forum does an awesome job of keeping us informed. If we see a local dealer who contimues to give members the shaft.... let them know it, thell them they've been outed on the Forum... and KEEP AWAY!

On the other hand, if you find a shop that does great work and believes in customer service LET US KNOW!
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Old Jul 31, 2005 | 09:06 PM
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This a/c problem is baffling to me. My C6 has had no problems for 2250 miles. I have driven it recently in heat of 107 degrees with no problems. Did the factory change something (my car built 5/9). If the pressure was set the same for all of our cars, why wouldn't everyone have the problem? I'm no tech obviously but I don't get this problem.
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