AC Pressure Cycling Switch Question
2003 Express AWD 5.3L here. I have a quick question about the AC system. I need to replace the low pressure cycling switch that's located on the Accumulator. I need to know if I have to have the system discharged in order to replace that switch, or can I just pop the old one off and put the new one on without discharging the system?
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You don't have to discharge it. Just change it out.
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Originally Posted by tymr287
(Post 239009)
You don't have to discharge it. Just change it out.
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Kevin, check your info. There is a Schrader valve under the pressure switches that seals off the system if removed. And nowhere in GM Globalconnect does it say to discharge before changing.
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Just change it. All pressure switches have Schrader valves as stated above.
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Thanks for your input everyone. To the folks who said that there was a Schrader valve behind the switch you were exactly right. Changing the switch out was as easy as removing the old one and putting in the new one. Thanks again! :)
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