Question about 2001 Hyundai Santa Fe

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Wife was sitting in the car idling with ac on. refrigerant blew

Wife was sitting in the car idling with ac on. she revved the engine a little and all the refrigerant blew out. I had recently added some R134 and apparently had a defective pressure gauge with the can because the same thing happened to me while I was filling it but the ac still worked. I thought there was a pressure relief valve that would open up if there was too much system pressure so I was surprised when all the R134 came out. I also don't recall the compressor clutch cycling at all. Could it be a bad cycling switch not engaging the clutch and causing the system to build excessive pressure? It's the middle of summer in Phoenix AZ! My wife and son need ac!

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Yes the system could have been over filled. Or the pressure switch could have been stuck closed not allowing the compressor to kick off. Unless the AC relay had gotten stuck as well. Your best bet is to take it to a shop and have them check the switch and the system. You may have either blown a seal or a line.

Posted on Jul 13, 2009

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Posted on Jan 02, 2017

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