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I have a 2018 ac radiator took a crap replaced it and was going to vacuum out system and recharge when I discovered the gauges quick connects wont fit the trucks hi or low conector ports seems the male connectors on truck are bigger than the female hose connectors is this something only Gm has I could Scratch my head if it was just low side but high side connectors are to big to 5 mill
 

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I have a 2018 ac radiator took a crap replaced it and was going to vacuum out system and recharge when I discovered the gauges quick connects wont fit the trucks hi or low conector ports seems the male connectors on truck are bigger than the female hose connectors is this something only Gm has I could Scratch my head if it was just low side but high side connectors are to big to 5 mill
No it's not GM it's because of the freon used. In 2018 they went to that Y1234f stuff and I'm sure they were forced to use different connectors by some government agency that's there to help!
 
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