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Where is the low pressure switch for the air conditioning?

Tiny
Z534851
  • MEMBER
  • 2017 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 50,000 MILES
I need to know where low pressure switch for A/C is or if there is not one can I evacuate A/C and get a enough refrigerant in with vacuum only to get compressor on?
Monday, July 5th, 2021 AT 6:11 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi,

As far as the pressure sensor, there is only one and it is referred to as an A/C pressure sensor.

Can you explain what is happening? Also, does the vehicle have automatic or manual climate control?

As far as vacuuming the system, you will need special tooling. Take a look through this link:

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

Also, take a look through this link. It explains what to check for an inoperative or weak A/C system.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Let me know if that helps.

Take care,

Joe

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Monday, July 5th, 2021 AT 9:45 PM

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