A/C compressor not engaging

2015 HYUNDAI ELANTRA
99,999 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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KIM RUNNELS
  • MEMBER
  • 1 POST
no cold air.
May 11, 2020 at 5:42 PM
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KASEKENNY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 18,907 POSTS
If the clutch is not engaging that is most likely one of two issues. First there is not enough Freon in the system to allow the pressure sensor to engage the compressor or there is no power to the compressor.

We need to start by checking for A/C pressure with a gauge set that is shown in this guide. Let me know what the low and high side pressures are. If they prove out okay, then we need to use the wiring diagram and check for power at the compressor.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Let me know if you have questions and we can go from there. Thanks
May 11, 2020 at 6:56 PM
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