Skip to content
YOUCANIC
  • HOME
  • VEHICLES
  • SCANNERExpand
    • Learn More
    • Buy Now
    • Rent It
    • AdaptersExpand
      • 12+8 FCA Chrysler Dodge
      • BMW 20 Pin Adapter
      • Mercedes 38 Pin Multiplexer
  • VIDEOS
  • RESOURCESExpand
    • SERVICE
    • VIN Decoder
    • DTC Fault Codes
    • Glossary
    • Parts Catalog
  • SUCCESS STORIES
  • SUPPORT
  • FORUM
  • CONTACT US
YOUCANIC

Cadillac Air Conditioner A/C Recharge Instructions

⌂ » Vehicles » Cadillac

Posted onApr 5, 2018Oct 5, 2022 Updated onOct 5, 2022

This guide provides instructions on charging the Cadillac Air Conditioner (A/C) system with refrigerant (R134a freon).

If the A/C is blowing hot air, there is a good chance that the system is low on freon. A minor leak can be addressed by topping off the A/C system with refrigerant. The A/C system is closed, and all leaks should be repaired.

Symptoms

One of the most common symptoms that your Cadillac is low on refrigerant is the A/C blowing hot air even when the temperature is set to cold settings.

What you will need

SaleBestseller No. 1
AC Pro Car Air Conditioner Synthetic R134A Refrigerant, AC Recharge Kit with Hose and Gauge, 20 Oz,...
AC Pro Car Air Conditioner Synthetic R134A Refrigerant, AC Recharge Kit with Hose and Gauge, 20 Oz,…
Replaces lost R-134a refrigerant and oil in automotive A/C system; Extra long 24 inch recharge hose for accessing hard to reach service ports
$50.00
  • Air Conditioner Recharge Kit – Recommend A/C refrigerant is noted in your owner’s manual.
  • Working Gloves
  • Protective Glasses

Procedure

  1. Park your Cadillac in a safe area. Turn off the engine.park cadillac vehicle
  2. Pull the hood release under the dashboard until you hear your Cadillac hood pop open. Open the hood.unlock cadillac hood
  3. Next, locate the low-pressure port. Label 11 in this picture shows where the A/C charging port is on a Cadillac. Note that there also is a high-pressure line as well. The A/C charging kit connector will not fit on the port for the high-pressure line. cadillac low pressure port
  4. Carefully remove the cap from the low-pressure port by twisting it counterclockwise.ac cap removal
  5. Connect your AC charging kit to the A/C charging port. You are almost ready to add freon to your vehicle A/C system. connect ac pressureDon’t start adding refrigerant to your Cadillac A/C system yet.
  6. Start the engine of your car and allow your Cadillac to idle. start engine and let it idle
  7. Next, turn A/C on and set it to the max cold setting. Set the blowing fan to maximum speed. Now you are ready to start adding refrigerant to your Cadillac air conditioner system.
  8. Now you are ready to start adding refrigerant to your Cadillac air conditioner system.
  9. Add refrigerant as directed by the manufacturer of the A/C recharge kit you use. You must press and hold the trigger until your Cadillac A/C is fully charged. This process can take several minutes.
  10. When the a/c system is low on freon, the compressor may not be engaged at first. As you add refrigerant, you should hear the compressor kick in. As you charge, the system stops pressing the trigger every couple of minutes to obtain a pressure reading. Continue adding refrigerant until your gauge reaches the charged range.

Do not allow the system to overcharge. This procedure will only be useful if your Cadillac air conditioner has a very slow leak. If your system has a large refrigerant leak, recharging the system won’t fix the problem. You will lose the refrigerant immediately or within a few days.

Charging a Cadillac A/C system with refrigerant is easy and takes about 15 minutes. These instructions will help the owners of Cadillac ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR vehicles, and other models.

The only difference between various Cadillac models is that the A/C charging port is located in the engine bay.

We hope you find the Cadillac Air Conditioner A/C Recharge Instructions guide helpful. Check these troubleshooting and repair guides for more help on your Cadillac.

Author

  • Rushit Hila • ASE Certified
    Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

    View all posts

Questions?

Have questions about your car? Get assistance in our newly launched forum section. We’re here to provide support!

Continue

Post navigation

Previous Previous
Cadillac Airbag Light Came On
NextContinue
Cadillac Sway Bar Link Replacement
Mercedes 7226 valve body conductor plate

From Dealer Quotes to DIY Hero: Carlos Alvarez’s Inspiring Car Repair Journey

Arshia and his car

DIY Repair Success: How a Teenager in New Zealand Saved Thousands

How a Rear Level Sensor Failure in My Mercedes-Benz W221 S-Class Almost Ruined My Drive

YOUCANIC Home

1301 York Rd Suite 800
Timonium Maryland 21093 USA
Tel: 1 (888) 959-4265
Hours: M-F 8:00 AM - 4:00 PM

  • About Us
  • Careers
  • Testimonials
  • Contact Us
  • Get Help
  • Terms & Conditions
  • DMCA
  • Privacy Policy
  • Fault Code Lookup
  • Parts Catalog
  • VIN Decoder
YouTube Facebook Email Google Reviews Phone

© 2015-2023 YOUCANIC® All rights reserved. YOUCANIC® offers automotive guides and practical solutions to help car owners. While we strive for accuracy, we can't guarantee our information is free from errors, omissions, or oversights. Our content is for educational purposes only and does not replace professional advice. By using YOUCANIC®, you agree to our Privacy Policy and Terms of Service. We participate in affiliate programs with Amazon, Advance Auto Parts, and eBay, and may earn a commission on purchases made through our site. Please consult a professional before making decisions based on our content. For further assistance, contact our Customer Service team.

  • HOME
  • VEHICLES
  • SCANNER
    • Learn More
    • Buy Now
    • Rent It
    • Adapters
      • 12+8 FCA Chrysler Dodge
      • BMW 20 Pin Adapter
      • Mercedes 38 Pin Multiplexer
  • VIDEOS
  • RESOURCES
    • SERVICE
    • VIN Decoder
    • DTC Fault Codes
    • Glossary
    • Parts Catalog
  • SUCCESS STORIES
  • SUPPORT
  • FORUM
  • CONTACT US
Phone 1-888-959-4265Email support@youcanic.comLocation Baltimore MD USA
Search