# A/C Sight Glass?

**URL:** <https://community.cartalk.com/t/a-c-sight-glass/94249>\
**Category:** General Discussion\
**Tags:** soul, kia\
**Created:** [August 3, 2016, 12:38am UTC](https://community.cartalk.com/t/a-c-sight-glass/94249 "2016-08-03T00:38:28Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [August 9, 2016, 3:23am UTC](https://community.cartalk.com/t/a-c-sight-glass/94249/18 "2016-08-09T03:23:40Z")

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> [@kurtwm2010](#):
>
> The car’s sight glass is on the low side.

The car’s sight glass is never on the low side. It’s always on the liquid leg of the high side.

The sight glass on the gauge set you hook up to a car is useless for determining charge. There’s no refrigerant flowing through it when the system is running.

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