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Old 26.07.2020, 10:57
mek mek is offline
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Re: Possible issue with a car mechanic (car A/C refill)

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Most likely a cracked hose. Any decent mechanic knows how to check for it.
It's most likely a leak but source could be any number of things. You are now able to go to your mechanic with a more fully defined problem. They can use a dye in the gas to identify where the leak came from. This might even have been in the gas when you go your refill, which means you could get a rapid detail diagnosis. The dye would be UV so don't expect to see it with the naked eye. You need a UV torch, and eye protection. Possible/likely leak sources include:

* Dryer;
* Condenser (hole);
* Rubber seal on high pressure line where connection is made to condenser;
* Worn/holed high/low pressure line.