Your vehicle should be on and the AC set to MAX Cool with the Fan Speed on high. If you do not do this the gauge will go into the red area.

However, if your compressor is on and the gauge goes into the red, you have other issues and you should take your vehicle to a mechanic.

Need help finding the low-side A/C port? Use our simple online port locator: [ Ссылка ]

Have questions? Ask the pro: [ Ссылка ]

A/C Pro can be found on the shelves of most auto parts stores. To find the nearest location, type your zip code into our store locator: [ Ссылка ]

AC PRO COLD - ACP 100: [ Ссылка ]

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