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Discussion Starter #1 (Edited)
I have looked under both hoods, under the car, and on top of the car lol. I can not find out where to recharge the a/c. It is a 2008 fourtwo. Can anybody help me? I need to know where the low pressure nipple is.

Thank You
 

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Thanks SmartJoe and Drew! The question had never occurred to me. At four Summers and 40 Months of use, it's just a matter of time til I'd be asking the same question.
 

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Looks like you read my mind, it took a few days though. Thought the same thing when the question was asked.
Original post last night was past my bedtime. :)

When I read that, the first thing that popped in my head was: If one does not know where the service ports are located, how does one know the refrigerant is low?
 

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Original post last night was past my bedtime. :)

When I read that, the first thing that popped in my head was: If one does not know where the service ports are located, how does one know the refrigerant is low?
That's what popped into my head. Still good for people that have the gauges and the know how to use them to know where they are.
 

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Have gauges. Blowing hot air and compressor not coming on would be my guess.
Worked on a car the other day (not a smart). It blew hot air and the compressor didn't come on. Turned out to be a corroded connection. Worked on another right after that - hot air and no compressor, this time it was a relay. The list goes on for reasons why an A/C would not be working. :p

I would suggest to the OP if it is blowing hot air to look at other things (like the pesky little connector under the dash that breaks so easy) and be careful not to overfill if insisting on blindly adding freon. :wink:
 

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Worked on a car the other day (not a smart). It blew hot air and the compressor didn't come on. Turned out to be a corroded connection. Worked on another right after that - hot air and no compressor, this time it was a relay. The list goes on for reasons why an A/C would not be working. :p

I would suggest to the OP if it is blowing hot air to look at other things (like the pesky little connector under the dash that breaks so easy) and be careful not to overfill if insisting on blindly adding freon. :wink:
Oh, I quite agree. :)
 

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This is just the beginning of AC problems with our cars. The Canadians were seeing a lot of failures as their 450 cars aged.

The problems were caused by line seals leaking due to the long runs from the compressor up to to the radiator and back. The leaks were tiny but each spring the coolant was gone.

Never heard what the final fix was but a lot of the guys just switched to a heaver coolant like "Duracool" . A2Jack.
http://www.duracool.com/
 

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This is just the beginning of AC problems with our cars. The Canadians were seeing a lot of failures as their 450 cars aged.

The problems were caused by line seals leaking due to the long runs from the compressor up to to the radiator and back. The leaks were tiny but each spring the coolant was gone.

Never heard what the final fix was but a lot of the guys just switched to a heaver coolant like "Duracool" . A2Jack.
Duracool®.com 2004 - Duracool® is The Recognized Leader In Hydrocarbon Refrigerant Technology
That stuff is bad news. Look at the MSDS sheet. Shipping name: Petroleum Gases Liquified. Not to mention that if one took a vehicle with one of these off-the-wall refrigerants in it to a professional repair shop and their refrigerant identifier found it in the system, likely the only two choices you would get for service is: 1-Go away, or 2-Replace everything in the system.
 

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That stuff is bad news. Look at the MSDS sheet. Shipping name: Petroleum Gases Liquified. Not to mention that if one took a vehicle with one of these off-the-wall refrigerants in it to a professional repair shop and their refrigerant identifier found it in the system, likely the only two choices you would get for service is: 1-Go away, or 2-Replace everything in the system.
Stuff works well, I personally have used it in other vehicles, and found it greatly improved the AC coldness. Duracool is DOT approved and in use in the US trucking industry.

Years ago the auto refrigerant fix was put in by DuPont, to lock in profits. R-12 was only discontinued when DuPont was ready with R-134 and lobbied to have it mandated.

Duracool Is legal and is a good product. Many Smart owners over in Canada successfully switched to it solve their AC leak problems.

Disclaimer. I have "no axe to grind" here just passing along information from first hand experience with this product. Check out the web site. A2Jack
 

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I wonder how many Canadians smart owners use their AC that often? There are only a few areas that get warm enough in the summer...Ontario, Alberta, and Manitoba come to mind first.

I wonder if its an issue with Winter roadway salts?
 

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Stuff works well, I personally have used it in other vehicles, and found it greatly improved the AC coldness. Duracool is DOT approved and in use in the US trucking industry.

Years ago the auto refrigerant fix was put in by DuPont, to lock in profits. R-12 was only discontinued when DuPont was ready with R-134 and lobbied to have it mandated.

Duracool Is legal and is a good product. Many Smart owners over in Canada successfully switched to it solve their AC leak problems.

Disclaimer. I have "no axe to grind" here just passing along information from first hand experience with this product. Check out the web site. A2Jack
I did not say it did not work. I would prefer not to have a a/c system full of what is essentially propane.
 

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Question. My sons car has a slow leak in it. will this not leak out like the stock R-134? I don't want to dump a ton of money in to it but, he has allergies and uses the ac as a result.
 

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Question. My sons car has a slow leak in it. will this not leak out like the stock R-134? I don't want to dump a ton of money in to it but, he has allergies and uses the ac as a result.
Anything you put into your a/c system other than the specified refrigerant and a/c oil is a comtaminant. These so-called stop-leak products and alternate refrigerants are contaminants. What will you do if you introduce stop-leak into the system and it still leaks? Put in more? Then what? If it will stop a leak what do you think it will do to the small passages in the a/c condenser or in the thermal expansion valve? Then when the system stops working any reputable repair shop that finds that stuff in the system either will not work on it in order to avoid contamination of their recovery equipment or they will need to replace all the major components in order to make it work properly.

Then, when it does not work properly and you do not want to spend the money to repair it, will you sell it without disclosing to the buyer the mess they have purchased? Would you want someone to do that to you?

It sounds like you do not even know where the leak is. Why do you not have a reputable repair shop first determine where the leak is located and the cost of a proper repair. Then repair it properly or leave it alone.

Sorry for the rant but in many cases a half-baked band-aid solution comes with a greater eventual cost than a proper repair.
 
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