Cadillac Air Conditioner A/C Recharge Instructions
This guide provides instructions on how to recharge the Cadillac Air Conditioner system, which uses the R134A refrigerant type.
If your A/C persists in blowing hot air, it is likely that the aircon system is low on freon. The A/C system is a closed-loop type, where the freon cycles throughout the compressor, goes to the condenser and then to the evaporator, and comes back as it cannot escape the system. The refrigerant can be refilled to address a minor leak issue.
Symptoms
Setting the temperature to the coldest selection, but the Cadillac keeps on blowing hot air. It is a common indication that it has low refrigerant.
How to Recharge A/C Refrigerant on Cadillac
What you will need
- Air Conditioner Recharge Kit
- Working Gloves
- Protective Glasses
Procedure
- Park your Cadillac in a safe area. Turn off the engine.
- Pull the hood release under the dashboard until you hear your Cadillac hood pop open. Open the hood.
- Next, locate the low-pressure port. Label 11 in this picture shows where the A/C charging port is on a Cadillac. Note: Cadillacs also have a high-side pressure line. The A/C charging kit connector won’t attach to the high-pressure line port.
- Cautiously remove the cap from the low-side pressure port by rotating it counterclockwise.
- Connect your AC charging kit to the A/C charging port. You are almost ready to add freon to your vehicle A/C system.
Don’t start adding refrigerant to your Cadillac A/C system yet. - Start the engine of your car and allow your Cadillac to idle.
- Next, turn the A/C to the maximum cold setting and set the blowing fan to maximum speed.
- You can now start increasing the Freon gas in your Cadillac A/C.
- Press and hold the trigger until your Cadillac’s A/C is fully charged. Adding refrigerant to the A/C system will take several minutes. To correctly refill your Cadillac’s freon, you must follow the manufacturer’s instructions for the A/C recharge kit.
- When the aircon system is low on freon, the compressor may not be engaged initially. However, as you add refrigerant, you should hear the compressor kick in. As you charge, the system stops pressing the trigger every few 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 leaks very minor. Trying to recharge the system with a large leak won’t fix the problem. You will immediately lose the refrigerant or within a few days.
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Replenishing the Cadillac A/C system is quite a simple task and takes approximately 15 minutes.
These instructions will help the owners of the Cadillac models mentioned below.
The A/C service charge ports in the engine bay have different locations between various Cadillac models such as ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, XLR vehicles, and other models.
We hope you find the Cadillac Air Conditioner A/C Recharge Instructions guide helpful. For more help with your Cadillac, check these troubleshooting and repair guides.
Easy Breezy
I love the step by step instructions.